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  #41   Report Post  
Kalman Rubinson
 
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Default Hi-fi, High-end and Multi-channel reproduction

On Wed, 29 Oct 2003 18:22:28 GMT, Bruce Abrams
wrote:

"Kalman Rubinson" wrote in message
news:47Snb.57301$HS4.298229@attbi_s01...
This is an oversimplification. YOur two ears, including external,
middle and internal portions, plus your brain can interpret 3D sound
in the real world because they are getting 3D sound. You cannot
record 3D sound (not a good term but I quote it from you) with only
two receptor sets unless you add a brain (as does, to a degree, the
Soundfield Mike). Give the human system 2 sources and it cannot
interpret (accurately) what the 3D original was.


That's not entirely true. While the difficulties of true binaural recording
are myriad, when done properly for a specific listener, the results are
quite startling in their replication of the original event. Unfortunately,
the difficulties render the process impractical.


Agreed. In that case, you are encoding SOME of the 3D information by
using a dummy head with dummy pinnae.

Kal

  #42   Report Post  
Nousaine
 
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Default Hi-fi, High-end and Multi-channel reproduction

Kalman Rubinson wrote:


On Wed, 29 Oct 2003 18:22:28 GMT, Bruce Abrams
wrote:

"Kalman Rubinson" wrote in message
news:47Snb.57301$HS4.298229@attbi_s01...
This is an oversimplification. YOur two ears, including external,
middle and internal portions, plus your brain can interpret 3D sound
in the real world because they are getting 3D sound. You cannot
record 3D sound (not a good term but I quote it from you) with only
two receptor sets unless you add a brain (as does, to a degree, the
Soundfield Mike). Give the human system 2 sources and it cannot
interpret (accurately) what the 3D original was.


That's not entirely true. While the difficulties of true binaural recording
are myriad, when done properly for a specific listener, the results are
quite startling in their replication of the original event. Unfortunately,
the difficulties render the process impractical.


Agreed. In that case, you are encoding SOME of the 3D information by
using a dummy head with dummy pinnae.

Kal


But you are NOT including that information for YOUR head. Plus with headphone
playbakc you will miss sound heard through bone conduction; the external sound
you still hear when you plug the ear canals.

Perhaps, for that reason, I've never experienced a commoercially available
binaural recording that delivered 3D sound in the frontal plane. It seems to
work spatially quite well as long as the sound source is to the rear I lose the
illusion when the source is to the front.

  #43   Report Post  
Dick Pierce
 
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Default Hi-fi, High-end and Multi-channel reproduction

"Uptown Audio" wrote in message news:GJInb.53489$Fm2.32924@attbi_s04...
Giving that some thought; wouldn't it make sense then that sound
engineers seem to be lacking in the ability to create a true 3D sound
reproduction in that they are using too many source mikes and not a
pair (as in your ears) and letting the hall acoustic create it's own
3D effect (as in your analogy of multiple unlimited actually sources
of sound)? Would you then suggest that a concert could not be fully
enjoyed by a person with only two ears or that two acurate recording
devices would not best mimick that experience? What I am saying is
that regardless of how many points in space sound may eminate from, it
is perceived by only two receptors. Thus it can stand to reason that
it can be recorded in that fashion if the devices used are adequate
and can recover the proper spectrum from the same directions. Playback
would then require only two channels, yet would contain information
received directly and by reflection and frequency/phase relation from
the original hall in it's entirety.


Wrong.

Your assertions completely ignore the fact that two ears placed in
a soundfield determine directional queues as a result of the acoustical
masking, interference effects, filtering and such of the head and
outer ear to which the ears themselves are attached. So a pair of
ears in a venue, by themselves, WILL capture all the information
THAT PAIR OF EARS NEED to determined directionality.

That masking, shadowing, interference, filtering, and so on is
known as the HRTF (Head Related Transfer Function) which, to a
large extent, is specific to the individual owning those ears.

When a sound comes from "over there," it passes around the
physical structures of the head and ear and is modified by the
HRTF in a way that you have adapted to and the resulting filtered
acoustical sound is one having queues that makes you recognize
that the sound came from "over there."

But whena sound comes from "over yonder," since it takes a different
physical path, it is modified in a different way by your HRTF,
and the filtered result tells you it came from "over yonder."

The HRTF provides a mapping between geometrical position and
the cues necessary to decide whether it's "over there" or "over
yonder" or somewhere else.

In order for the HRTF to work, the sound MUST be coming from
specific directions, it must have a geometrical position.

In order for the HRTF to work well, there must be but ONE HRTF
in the entire chain (in your case it must be YOUR HRTF, in my
case, it must be mine, and so on).

Place two microphones in the venue and record. You can look at
what happens simply: these two microphones have NO HRTF or they
have no HRTF which is related in any way to yours or mine. Let's
assume they have none, for all intents and purposes.

What you have now done, first of all, is remove ALL unambiguous
geometrical position information. Those microphones DO NOT HAVE
AN HRTF THAT ENCODES GEOMETRICAL POSITION CUEUS. They are GONE,
FORGOTTEN. Two "transducers" in space that do not have an HRTF
that generates unambiguous cues based on position CANNOT
UNAMBIGUOUSLY CODE POSITION.

The position information IS NOW GONE.

Now, play it back over two speakers. Whatever sound eminates from
those speakers only NOW can be processed by your HRTF. But there
is no longer any unambiguous position information left. Now, the
ONLY thing your ears can do, with their intact HRTF, is attempt
to locate, IN THE ROOM, where the sound sources are.

Now, you can get phantom images, very crude illusions because
any number of microphones do have their own "HRTF," but it is
SO wildly unrelated to what your ear's HRTF was in the same venue,
you end up with a lot of ambiguous apparent positions, "pinpoint
images," and all sorts of stuff that are little more than a caricuture
of the original soundfield. The ONLY thing that properly triggers
your HRTF-based positioning system is the listening room in which
the SPEAKERS are playing.

The bottom line is this:

The ONLY time YOUR ears can sense direction is when the sound
COMES from that direction and is heard BY YOUR EARS. Your ears
have built in physical structures that are designed to do this.
Once you have captured a sound field with two microphones, the
sound, played back IS NO LONGER COMING FROM THAT DIRECTION.

That is why, for decades and decades and decades, those people who
DO know how the ear senses directionality (and precious few if any
of those people are in the high-end audio business), have known that
two channel reproduction is utterly incapable of presenting a
realistic image of an acoustical sound field to a listener. The only
group of people who have consistently stated otherwise are a small
group localized almost entirely withinn the high-end audio world
who have little knowledge of the role of the HRTF and other factors
in how humans listen to asound.

  #44   Report Post  
Cossie
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

Excellent reply, Dick! It's a keeper.

I'd also like to add that, it seems to me, there are psychological factors
involved - it's difficult to fool the brain into believing something when
the various senses contradict one another. In other words, your eyes see
that you're not sitting in a concert hall, so that makes the illusion of
creating an aural concert hall that much harder to believe on a basic
level - even if the audio reproduction of that hall is very, very good. On
a related note, in live sound we try to place the speaker generally in line
with the visual source, because although it may be easier to get
intelligible audio to the listener with multiple delayed speakers in a very
reverberant space, it creates what we call "listener fatigue" when the eyes
see someone speaking in one location and the sound coming to the ears is in
a different location. You can intellectually understand it all you want,
but your brain still fights it. The same is true of a home listening
set-up. Through various other inputs and memories, your brain KNOWS that
you're sitting in your living room (or wherever), so no amount of concert
hall reverberant information is going to truly make you believe otherwise.

Not to mention the fact that most listening rooms add their own personal
signature to what you hear, unless you have created an anechoic chamber in
which to listen.

Bill Balmer

  #45   Report Post  
Andre Yew
 
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Default Hi-fi, High-end and Multi-channel reproduction

"Harry Lavo" wrote in message news:tDbnb.42730$HS4.180174@attbi_s01...
I would guess this is partly why the ITU standard calls for the "surround"
speakers to be at 110 degrees...it puts them far enough "forward" that the
early can locate the directionality to some degree, versus further "back" in
the rear.


Harry,

The ITU standard is probably a compromise between envelopment which is
maximally perceived at 90 degrees to the sides, and rear
directionality (the sense of something behind you), which is optimal
at +- 150 degrees. A 7-speaker system with intelligent steering, such
as Lexicon's Logic 7, can do a very nice job of matrixing the rear 2
channels of a 5.1-channel source into 4 channels with this in mind.

As for the necessity of surround, consider the following facts:

1. The critical distance (the distance from a sound source where the
energy of the direct sound is equal to the indirect sound's) in an
average concert hall is about 3 meters. So unless you're the
conductor with a small group, you will be listening outside the
critical radius, and therefore the majority of the sound you will hear
is from around you, and not from the front of you. Even if you're
within the critical distance, you'd have to be within 0.3 meters of
the sound source for the hall's reflections to be only 20 dB below the
main signal! Consider the size of a concert grand piano (about 3
meters), and this is clearly an unrealistic requirement, for even the
pianist is outside the critical radius for some of the sounds he
produces.

2. The sense of a hall is determined in large part by its lateral
reflections --- sideways moving soundwaves --- which cannot be
reproduced by two speakers, unless those two speakers are directly to
your side, and then you get other problems. In fact, the sense of
envelopment is frequency- and direction-dependent, with generally
lower frequencies needing to be more to the sides to be enveloping.

3. The human head is not a static sampler that samples two points in
space. It actively moves about a volume in space, intelligently
sampling different points to construct its aural picture. This is why
binaural recording is unsatisfactory for frontal images, and why
surround schemes that pay attention to only one point, like
Ambisonics, are ultimately unacceptable. An ideal surround system for
one person would reproduce a volume of the original soundfield large
enough to encompass a listener's head and shoulders, allowing the
listener to use all his/her natural facilities to sample the
soundfield and hear what he/she hears. Unfortunately, such a
construct is unimaginably difficult, with Gerzon proposing a 1-million
channel system to do this. More recent proposals, like JJ's PSR, and
other similar schemes, offer to capture the psychoacoustically
important cues, and reproduce them, and are more practical in the
number of channels they require (5 to 20-something, depending on who
you talk to).

--Andre


  #46   Report Post  
Uptown Audio
 
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Default Hi-fi, High-end and Multi-channel reproduction

Very good. I don't argue with that assessment at all other than to add
that you are not being realistic in terms of what is possible.
Obviously you can't recreate the exact experience of being there, but
you can attempt to approximate it. All a recording is afterall is a
passable copy of the original event. The standard for many years has
been stereo for it's accuracy and cost effectiveness. To deny that is
to ignore fact. Good stereo recordings can be very realisitic and do
capture hall ambience and as you say "imaging", etc. to provide as
close to a copy as is possible to the original. Some recordings are
just better than others as are some speakers in reproducing this and I
feel that it has as much to do with the recording technique as it does
with the apparatus. That is why some recording engineers are more
famous for their work and why they consistently produce popular
results and why not just anyone with a good kit can duplicate it. The
brain is a very complex device and fortunately we are all equipped
with one, so that function is going to come standard with any kit. I
don't buy the statement that simply because the brain is not present
in the recording chain that the event cannot be accurately recorded
with some 3D information still intact. Again, it is not that it will
be "AS IF" you were there, but that you could imagine yourself there.
It is a leap of faith when you listen to any recording in a different
environment and then allow yourself to be transported to the original
venue via your brain, whether with stereo or with an excessive number
of channels . The brain works as it should in that environment
and the 3D cues that do come through the better recordings create the
listener's illusion that sounds come from around as well as directly
from the sources. The lateral "acoustic images" are well known as
"phantom center" as well as those that "appear" outside the speaker
locations to the left, right and even from farther back behind the
speakers plane. Images that appear in front of that plane and
including those that admittedly more rarely extend beyond the position
of the listener are also reported. You do not further the science or
the industry by insulting the intelligence of all those who have heard
stereo recordings (and we can count most of the people in developed
nations) when you make false and misleading statements about other
professionals in the industry. It may make you feel better, but it
does not reflect very well on you or your views when you insult those
you have never met.
- Bill
www.uptownaudio.com
Roanoke VA
(540) 343-1250

"Dick Pierce" wrote in message
news:vM9ob.63098$Tr4.168703@attbi_s03...
"Uptown Audio" wrote in message

news:GJInb.53489$Fm2.32924@attbi_s04...
Giving that some thought; wouldn't it make sense then that sound
engineers seem to be lacking in the ability to create a true 3D

sound
reproduction in that they are using too many source mikes and not

a
pair (as in your ears) and letting the hall acoustic create it's

own
3D effect (as in your analogy of multiple unlimited actually

sources
of sound)? Would you then suggest that a concert could not be

fully
enjoyed by a person with only two ears or that two acurate

recording
devices would not best mimick that experience? What I am saying is
that regardless of how many points in space sound may eminate

from, it
is perceived by only two receptors. Thus it can stand to reason

that
it can be recorded in that fashion if the devices used are

adequate
and can recover the proper spectrum from the same directions.

Playback
would then require only two channels, yet would contain

information
received directly and by reflection and frequency/phase relation

from
the original hall in it's entirety.


Wrong.

Your assertions completely ignore the fact that two ears placed in
a soundfield determine directional queues as a result of the

acoustical
masking, interference effects, filtering and such of the head and
outer ear to which the ears themselves are attached. So a pair of
ears in a venue, by themselves, WILL capture all the information
THAT PAIR OF EARS NEED to determined directionality.

That masking, shadowing, interference, filtering, and so on is
known as the HRTF (Head Related Transfer Function) which, to a
large extent, is specific to the individual owning those ears.

When a sound comes from "over there," it passes around the
physical structures of the head and ear and is modified by the
HRTF in a way that you have adapted to and the resulting filtered
acoustical sound is one having queues that makes you recognize
that the sound came from "over there."

But whena sound comes from "over yonder," since it takes a different
physical path, it is modified in a different way by your HRTF,
and the filtered result tells you it came from "over yonder."

The HRTF provides a mapping between geometrical position and
the cues necessary to decide whether it's "over there" or "over
yonder" or somewhere else.

In order for the HRTF to work, the sound MUST be coming from
specific directions, it must have a geometrical position.

In order for the HRTF to work well, there must be but ONE HRTF
in the entire chain (in your case it must be YOUR HRTF, in my
case, it must be mine, and so on).

Place two microphones in the venue and record. You can look at
what happens simply: these two microphones have NO HRTF or they
have no HRTF which is related in any way to yours or mine. Let's
assume they have none, for all intents and purposes.

What you have now done, first of all, is remove ALL unambiguous
geometrical position information. Those microphones DO NOT HAVE
AN HRTF THAT ENCODES GEOMETRICAL POSITION CUEUS. They are GONE,
FORGOTTEN. Two "transducers" in space that do not have an HRTF
that generates unambiguous cues based on position CANNOT
UNAMBIGUOUSLY CODE POSITION.

The position information IS NOW GONE.

Now, play it back over two speakers. Whatever sound eminates from
those speakers only NOW can be processed by your HRTF. But there
is no longer any unambiguous position information left. Now, the
ONLY thing your ears can do, with their intact HRTF, is attempt
to locate, IN THE ROOM, where the sound sources are.

Now, you can get phantom images, very crude illusions because
any number of microphones do have their own "HRTF," but it is
SO wildly unrelated to what your ear's HRTF was in the same venue,
you end up with a lot of ambiguous apparent positions, "pinpoint
images," and all sorts of stuff that are little more than a

caricuture
of the original soundfield. The ONLY thing that properly triggers
your HRTF-based positioning system is the listening room in which
the SPEAKERS are playing.

The bottom line is this:

The ONLY time YOUR ears can sense direction is when the sound
COMES from that direction and is heard BY YOUR EARS. Your ears
have built in physical structures that are designed to do this.
Once you have captured a sound field with two microphones, the
sound, played back IS NO LONGER COMING FROM THAT DIRECTION.

That is why, for decades and decades and decades, those people who
DO know how the ear senses directionality (and precious few if any
of those people are in the high-end audio business), have known that
two channel reproduction is utterly incapable of presenting a
realistic image of an acoustical sound field to a listener. The only
group of people who have consistently stated otherwise are a small
group localized almost entirely withinn the high-end audio world
who have little knowledge of the role of the HRTF and other factors
in how humans listen to asound.


  #47   Report Post  
Bruce Abrams
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

"Uptown Audio" wrote in message
news:XLvpb.70020$mZ5.434082@attbi_s54...
Very good. I don't argue with that assessment at all other than to add
that you are not being realistic in terms of what is possible.
Obviously you can't recreate the exact experience of being there, but
you can attempt to approximate it.


The fundamental point that I intended when I began this thread, was that we
have after nearly 50 years, essentially maxed out the capability of the
stereo format. It is capable of a "willing suspension of disbelief"
facsimile of a musical event, but that is all. In order for us to achieve
significantly greater realism in music reproduction, we must accept the fact
that more playback channels, not exotic amps and cables, are required.

All a recording is afterall is a
passable copy of the original event. The standard for many years has
been stereo for it's accuracy and cost effectiveness.


You are correct in that stereo has been the standard, but the reason has had
everything to do with cost effectiveness, and nothing to do with accuracy.

*snip*
I don't buy the statement that simply because the brain is not present
in the recording chain that the event cannot be accurately recorded
with some 3D information still intact.


Whether anyone "buys" this or not, it is a fact that most 3D information is
lost in the stereo recording chain.

Again, it is not that it will
be "AS IF" you were there, but that you could imagine yourself there.
It is a leap of faith when you listen to any recording in a different
environment and then allow yourself to be transported to the original
venue via your brain, whether with stereo or with an excessive number
of channels .


Are you truly arguing that multi-channel playback doesn't do a better job
than stereo in the reproduction of a three dimensional sound field? You
would need to cite some truly ground breaking research to prove this point.
As previously discussed, only a true binaural recording with an accurate
dummy head and pinnae specific to the intended listener is capable of such
reproduction.

The brain works as it should in that environment
and the 3D cues that do come through the better recordings create the
listener's illusion that sounds come from around as well as directly
from the sources. The lateral "acoustic images" are well known as
"phantom center" as well as those that "appear" outside the speaker
locations to the left, right and even from farther back behind the
speakers plane. Images that appear in front of that plane and
including those that admittedly more rarely extend beyond the position
of the listener are also reported. You do not further the science or
the industry by insulting the intelligence of all those who have heard
stereo recordings (and we can count most of the people in developed
nations) when you make false and misleading statements about other
professionals in the industry. It may make you feel better, but it
does not reflect very well on you or your views when you insult those
you have never met.
- Bill
www.uptownaudio.com
Roanoke VA
(540) 343-1250

"Dick Pierce" wrote in message
news:vM9ob.63098$Tr4.168703@attbi_s03...


*snip*

Wrong.

Your assertions completely ignore the fact that two ears placed in
a soundfield determine directional queues as a result of the

acoustical
masking, interference effects, filtering and such of the head and
outer ear to which the ears themselves are attached. So a pair of
ears in a venue, by themselves, WILL capture all the information
THAT PAIR OF EARS NEED to determined directionality.

That masking, shadowing, interference, filtering, and so on is
known as the HRTF (Head Related Transfer Function) which, to a
large extent, is specific to the individual owning those ears.

When a sound comes from "over there," it passes around the
physical structures of the head and ear and is modified by the
HRTF in a way that you have adapted to and the resulting filtered
acoustical sound is one having queues that makes you recognize
that the sound came from "over there."

But whena sound comes from "over yonder," since it takes a different
physical path, it is modified in a different way by your HRTF,
and the filtered result tells you it came from "over yonder."

The HRTF provides a mapping between geometrical position and
the cues necessary to decide whether it's "over there" or "over
yonder" or somewhere else.

In order for the HRTF to work, the sound MUST be coming from
specific directions, it must have a geometrical position.

In order for the HRTF to work well, there must be but ONE HRTF
in the entire chain (in your case it must be YOUR HRTF, in my
case, it must be mine, and so on).

Place two microphones in the venue and record. You can look at
what happens simply: these two microphones have NO HRTF or they
have no HRTF which is related in any way to yours or mine. Let's
assume they have none, for all intents and purposes.

What you have now done, first of all, is remove ALL unambiguous
geometrical position information. Those microphones DO NOT HAVE
AN HRTF THAT ENCODES GEOMETRICAL POSITION CUEUS. They are GONE,
FORGOTTEN. Two "transducers" in space that do not have an HRTF
that generates unambiguous cues based on position CANNOT
UNAMBIGUOUSLY CODE POSITION.

The position information IS NOW GONE.

Now, play it back over two speakers. Whatever sound eminates from
those speakers only NOW can be processed by your HRTF. But there
is no longer any unambiguous position information left. Now, the
ONLY thing your ears can do, with their intact HRTF, is attempt
to locate, IN THE ROOM, where the sound sources are.

Now, you can get phantom images, very crude illusions because
any number of microphones do have their own "HRTF," but it is
SO wildly unrelated to what your ear's HRTF was in the same venue,
you end up with a lot of ambiguous apparent positions, "pinpoint
images," and all sorts of stuff that are little more than a

caricuture
of the original soundfield. The ONLY thing that properly triggers
your HRTF-based positioning system is the listening room in which
the SPEAKERS are playing.

The bottom line is this:

The ONLY time YOUR ears can sense direction is when the sound
COMES from that direction and is heard BY YOUR EARS. Your ears
have built in physical structures that are designed to do this.
Once you have captured a sound field with two microphones, the
sound, played back IS NO LONGER COMING FROM THAT DIRECTION.

That is why, for decades and decades and decades, those people who
DO know how the ear senses directionality (and precious few if any
of those people are in the high-end audio business), have known that
two channel reproduction is utterly incapable of presenting a
realistic image of an acoustical sound field to a listener. The only
group of people who have consistently stated otherwise are a small
group localized almost entirely withinn the high-end audio world
who have little knowledge of the role of the HRTF and other factors
in how humans listen to asound.


  #48   Report Post  
Cossie
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

"Bruce Abrams" wrote in message
...

Are you truly arguing that multi-channel playback doesn't do a better job
than stereo in the reproduction of a three dimensional sound field?


I doubt that anyone was claiming this, though I won't presume to know what
others are thinking. As long as we all understand that this is, sadly, a
hypothetical debate at this point in time. As far as I can tell, the home
theater market is the lion's share of multi-channel systems in the home, and
I don't see any big swing away from that on the horizon. The record labels
just don't see the market for a big investment in multi-channel recording
and production of high quality music. Sure, there are some such recordings
out there, and multi-channel remasters of multiple-mono recordings, which
tend to be studio recordings that lean toward the rock/pop side of the
musical spectrum are relatively easy to make. But we've been talking about
accurate, multi-channel reproduction of a given space, and that's a
different ball game.

Technically, yes, it can be done, and it *can* be a superior reproduction of
the original performance. It is also much more difficult to do well, more
expensive to produce, has a smaller market, and can create havoc when it
comes to reproduction. So, possible - yes. Reasonable - ???

Bill Balmer

  #49   Report Post  
Dick Pierce
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

"Uptown Audio" wrote in message news:XLvpb.70020$mZ5.434082@attbi_s54...
Very good. I don't argue with that assessment at all other than to add
that you are not being realistic in terms of what is possible.

snip
of the listener are also reported. You do not further the science or
the industry by insulting the intelligence of all those who have heard
stereo recordings (and we can count most of the people in developed
nations) when you make false and misleading statements about other
professionals in the industry. It may make you feel better, but it
does not reflect very well on you or your views when you insult those
you have never met.


Great. Mr. Uptown, in one stroke of the pen, basically negates
a century and more of auditory research. Instead of dealing with
facts, Mr. Uptown instead resorts to insults of his own.

Mr. Uptown, why don't YOU go and see the research for yourself.
It's there, much of it written in and available in English. Read it,
understand it, see why things work the way they do.

As to "false and misleading statements about professionals," kind sir,
you had better be specific as to exactly what "false and misleading
statements" you accuse me of or retract them.

The REAL professionals in the field of auditory perception are NOT
to be found in the high-end audio industry. Whether YOU like it or
not, the high-end audio industry is an insignificant back-water
industry, as the sheer economic facts tell you quite unambiguously.

The FACT is, that two-channel stereo reproduction was demonstrated
well over a half century ago as being wholely unable to reproduce a
reasonable facsimile of the sound field by people whose life business
is was (and is) to study and understand the field of auditory
psychophysics. These are people, kind sir, who forgot more about the
field in a moment of distraction than the entire realm of high end
audio dealers combined ever knew.

As to the illusion, which is ALL that two-channel stero can ever be,
if you like it, fine. No one is telling you not to. But you, perhaps
by accident, wandered into a discussion about the physical properties
of sound fields and auditory perception. Your comments, while interesting,
are not germaine until you choose to verse yourself in the topic.

No insult intended.
  #50   Report Post  
Uptown Audio
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

I am not trying to argue anything, let alone that two channels are
better at reproducing sound from the rear than say four with two at
the rear. I am saying that good two channel recordings create a sense
of being at a venue, which is plenty for most of us considering the
cost of each channel. Also that sound from the rear for a musical
performance is not really desirable unless it is just hall ambience
(and does not include the nagging cough in row T). I feel that two
channels sound more natural in most respects to multi-channel due to
the recording techniques and that has nothing to due with amplifiers
or cables, just the location of the speakers and the mix of the
recording. So while you and others can go on about how it is possible
to reproduce a 3D sound field with multiple channels, it is not going
to happen until those making the recordings get a handle on it.
Further, and strictly from my perspective; it really does not interest
me in terms of what I am willing to invest in or in terms of how I am
willing to arrange my living space. Two channels is just fine. I do
have interest in what is possible with regards to others systems as I
sell those here, but I don't find them attractive personally. I do
enjoy a good modern movie, which is well recorded in a 5.1 format and
also the same films in a good stereo format. We offer both systems and
have them set-up in close proximity to each other as well as obviously
being able to demonstrate the multi-channel systems in stereo-only
mode. Some people find them awesome and attractive and that is fine. I
just like the idea of spending my hard earned money on fewer, better
quality components rather than on more, lesser quality ones. It comes
out the same at the cash register, it's just that my Lp collection
sounds a lot better on a nice stereo than on a mediocre theater rig. I
have also yet to be more impressed with the sound of any local theater
over a DVD played on my "stereo theater" system. It is easy enough to
make it more powerful and awe-inspiring by adding more channels while
keeping it all the same quality, it would just exceed my budget to a
ridiculous degree. So it is more a matter of space and budget rather
than of ideals when it comes to film that has a decent discrete
multi-channel sound track (non-discrete is another animal). For music
however, which is what I really enjoy most, I am really thrilled by a
great stereo and just annoyed mostly by a theater being used in that
fashion. A few good music videos have been made that don't use the
rear channels like a sonic version of Pong, but they are not reason
enough to waste three times the cash needed for a great stereo. I
suppose if movies matter to you more than music and you are a gadget
person and don't mind a load of speakers hanging around the room, then
multi-channel is cool baby. Another reason that I am not really
interested in multi-channel is due to the format change needed to
enjoy it and the waste of all the years of collecting stereo
recordings. I don't think anyone would argue that they would rather
sacrifice all previous recordings to have a few new enhanced, properly
recorded multi-channel ones, given the chane to really consider it.
Oddly many people do just that when they get their HT in a box systems
and use them as their sole source of entertainment. A lot of our
customers have two systems and use each exclusively for stereo music
and multi-channel theater respectively. That is to address the
recording issues that I have been dissatisfied with (not that anyone
else cares). It does not matter to me wheter everyone agrees with me
or not as I bought my stereo for my entertainment and not everyone
elses (the room is really not big enough for everyone - really). I do
like to voice my opinion on the value of stereo when I hear others
dismiss it as old-fashioned. Hell, I still like oatmeal...
- Bill
www.uptownaudio.com
Roanoke VA
(540) 343-1250

"Bruce Abrams" wrote in message
...
"Uptown Audio" wrote in message
news:XLvpb.70020$mZ5.434082@attbi_s54...
Very good. I don't argue with that assessment at all other than to

add
that you are not being realistic in terms of what is possible.
Obviously you can't recreate the exact experience of being there,

but
you can attempt to approximate it.


The fundamental point that I intended when I began this thread, was

that we
have after nearly 50 years, essentially maxed out the capability of

the
stereo format. It is capable of a "willing suspension of disbelief"
facsimile of a musical event, but that is all. In order for us to

achieve
significantly greater realism in music reproduction, we must accept

the fact
that more playback channels, not exotic amps and cables, are

required.

All a recording is afterall is a
passable copy of the original event. The standard for many years

has
been stereo for it's accuracy and cost effectiveness.


You are correct in that stereo has been the standard, but the reason

has had
everything to do with cost effectiveness, and nothing to do with

accuracy.

*snip*
I don't buy the statement that simply because the brain is not

present
in the recording chain that the event cannot be accurately

recorded
with some 3D information still intact.


Whether anyone "buys" this or not, it is a fact that most 3D

information is
lost in the stereo recording chain.

Again, it is not that it will
be "AS IF" you were there, but that you could imagine yourself

there.
It is a leap of faith when you listen to any recording in a

different
environment and then allow yourself to be transported to the

original
venue via your brain, whether with stereo or with an excessive

number
of channels .


Are you truly arguing that multi-channel playback doesn't do a

better job
than stereo in the reproduction of a three dimensional sound field?

You
would need to cite some truly ground breaking research to prove this

point.
As previously discussed, only a true binaural recording with an

accurate
dummy head and pinnae specific to the intended listener is capable

of such
reproduction.

The brain works as it should in that environment
and the 3D cues that do come through the better recordings create

the
listener's illusion that sounds come from around as well as

directly
from the sources. The lateral "acoustic images" are well known as
"phantom center" as well as those that "appear" outside the

speaker
locations to the left, right and even from farther back behind the
speakers plane. Images that appear in front of that plane and
including those that admittedly more rarely extend beyond the

position
of the listener are also reported. You do not further the science

or
the industry by insulting the intelligence of all those who have

heard
stereo recordings (and we can count most of the people in

developed
nations) when you make false and misleading statements about other
professionals in the industry. It may make you feel better, but it
does not reflect very well on you or your views when you insult

those
you have never met.
- Bill
www.uptownaudio.com
Roanoke VA
(540) 343-1250

"Dick Pierce" wrote in message
news:vM9ob.63098$Tr4.168703@attbi_s03...


*snip*

Wrong.

Your assertions completely ignore the fact that two ears placed

in
a soundfield determine directional queues as a result of the

acoustical
masking, interference effects, filtering and such of the head

and
outer ear to which the ears themselves are attached. So a pair

of
ears in a venue, by themselves, WILL capture all the information
THAT PAIR OF EARS NEED to determined directionality.

That masking, shadowing, interference, filtering, and so on is
known as the HRTF (Head Related Transfer Function) which, to a
large extent, is specific to the individual owning those ears.

When a sound comes from "over there," it passes around the
physical structures of the head and ear and is modified by the
HRTF in a way that you have adapted to and the resulting

filtered
acoustical sound is one having queues that makes you recognize
that the sound came from "over there."

But whena sound comes from "over yonder," since it takes a

different
physical path, it is modified in a different way by your HRTF,
and the filtered result tells you it came from "over yonder."

The HRTF provides a mapping between geometrical position and
the cues necessary to decide whether it's "over there" or "over
yonder" or somewhere else.

In order for the HRTF to work, the sound MUST be coming from
specific directions, it must have a geometrical position.

In order for the HRTF to work well, there must be but ONE HRTF
in the entire chain (in your case it must be YOUR HRTF, in my
case, it must be mine, and so on).

Place two microphones in the venue and record. You can look at
what happens simply: these two microphones have NO HRTF or they
have no HRTF which is related in any way to yours or mine. Let's
assume they have none, for all intents and purposes.

What you have now done, first of all, is remove ALL unambiguous
geometrical position information. Those microphones DO NOT HAVE
AN HRTF THAT ENCODES GEOMETRICAL POSITION CUEUS. They are GONE,
FORGOTTEN. Two "transducers" in space that do not have an HRTF
that generates unambiguous cues based on position CANNOT
UNAMBIGUOUSLY CODE POSITION.

The position information IS NOW GONE.

Now, play it back over two speakers. Whatever sound eminates

from
those speakers only NOW can be processed by your HRTF. But there
is no longer any unambiguous position information left. Now, the
ONLY thing your ears can do, with their intact HRTF, is attempt
to locate, IN THE ROOM, where the sound sources are.

Now, you can get phantom images, very crude illusions because
any number of microphones do have their own "HRTF," but it is
SO wildly unrelated to what your ear's HRTF was in the same

venue,
you end up with a lot of ambiguous apparent positions, "pinpoint
images," and all sorts of stuff that are little more than a

caricuture
of the original soundfield. The ONLY thing that properly

triggers
your HRTF-based positioning system is the listening room in

which
the SPEAKERS are playing.

The bottom line is this:

The ONLY time YOUR ears can sense direction is when the sound
COMES from that direction and is heard BY YOUR EARS. Your

ears
have built in physical structures that are designed to do

this.
Once you have captured a sound field with two microphones,

the
sound, played back IS NO LONGER COMING FROM THAT DIRECTION.

That is why, for decades and decades and decades, those people

who
DO know how the ear senses directionality (and precious few if

any
of those people are in the high-end audio business), have known

that
two channel reproduction is utterly incapable of presenting a
realistic image of an acoustical sound field to a listener. The

only
group of people who have consistently stated otherwise are a

small
group localized almost entirely withinn the high-end audio world
who have little knowledge of the role of the HRTF and other

factors
in how humans listen to asound.





  #51   Report Post  
Bruce Abrams
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

"Cossie" wrote in message
news:nGQpb.104738$Tr4.281863@attbi_s03...
"Bruce Abrams" wrote in message
...

Are you truly arguing that multi-channel playback doesn't do a better

job
than stereo in the reproduction of a three dimensional sound field?


I doubt that anyone was claiming this, though I won't presume to know what
others are thinking. As long as we all understand that this is, sadly, a
hypothetical debate at this point in time. As far as I can tell, the home
theater market is the lion's share of multi-channel systems in the home,

and
I don't see any big swing away from that on the horizon. The record

labels
just don't see the market for a big investment in multi-channel recording
and production of high quality music. Sure, there are some such

recordings
out there, and multi-channel remasters of multiple-mono recordings, which
tend to be studio recordings that lean toward the rock/pop side of the
musical spectrum are relatively easy to make. But we've been talking

about
accurate, multi-channel reproduction of a given space, and that's a
different ball game.


I disagree. The Telarc multi-channel SACDs that I've heard on my own 5.1
system (Paradigm Studio 100 v2, Studio CC and Studio 20 rears) were far more
convincing in multi-channel than they were in stereo. That's not to say
that it is was perfect multi-channel playback, but the whole point is that
even imperfectly done multi-channel (as long as it's tonally and dynamically
accurate and balanced) greatly exceeds the capabilities of even the best
stereo.

  #52   Report Post  
normanstrong
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

"Bruce Abrams" wrote in message
...

Are you truly arguing that multi-channel playback doesn't do a

better job
than stereo in the reproduction of a three dimensional sound field?

You
would need to cite some truly ground breaking research to prove this

point.
As previously discussed, only a true binaural recording with an

accurate
dummy head and pinnae specific to the intended listener is capable

of such
reproduction.


IOW, you are saying that it IS possible to reproduce a 3-dimensional
soundfield with only 2 channels--which would seem obvious, since there
are only 2 signals to supply our brain. True, the binaural technique
is the only one developed so far that does a workmanlike job of it,
but there is no theoretical reason why the eardrum can't be supplied
with the same signal by other means not yet developed.

Norm Strong
  #53   Report Post  
Harry Lavo
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

"Cossie" wrote in message
news:nGQpb.104738$Tr4.281863@attbi_s03...
"Bruce Abrams" wrote in message
...

Are you truly arguing that multi-channel playback doesn't do a better

job
than stereo in the reproduction of a three dimensional sound field?


I doubt that anyone was claiming this, though I won't presume to know what
others are thinking. As long as we all understand that this is, sadly, a
hypothetical debate at this point in time. As far as I can tell, the home
theater market is the lion's share of multi-channel systems in the home,

and
I don't see any big swing away from that on the horizon. The record

labels
just don't see the market for a big investment in multi-channel recording
and production of high quality music. Sure, there are some such

recordings
out there, and multi-channel remasters of multiple-mono recordings, which
tend to be studio recordings that lean toward the rock/pop side of the
musical spectrum are relatively easy to make. But we've been talking

about
accurate, multi-channel reproduction of a given space, and that's a
different ball game.

Technically, yes, it can be done, and it *can* be a superior reproduction

of
the original performance. It is also much more difficult to do well, more
expensive to produce, has a smaller market, and can create havoc when it
comes to reproduction. So, possible - yes. Reasonable - ???

Bill Balmer


Bill, must disagree after a point. It is true that most multi-channel
systems are home theatre, but most pop music sounds reasonably okay on those
systems, and the surround mix adds interest to the production. Moreover, to
the degree that DVD-A (and in the future, it is rumored, SACD) has extra
video elements, these appeal to the younger generation. And if your
interests run towards classical and jazz, then simply upgrading or designing
the home theatre to include five full range speakers (or a center with its
own separate sub, rather than or in addition to a LFE subwoofer) can give
superb sound and more and more disks are out there to satisfy. In fact most
classical nowadays is recorded and released multi-channel...Sony has just
announced that all its SACD releases will be hybrid SACD/CD from now on, and
they are rapidly converting their plants so production is no longer a
bottleneck. All the record companies except Time-Warner are now issuing
SACDs. Warner is still pushing DVD-A's, and a new crop of reasonably priced
all-in-one players (Yamaha, Marantz, Denon, Pioneer) are rapidly making the
format issue moot (although to my ears SACDs still win out in sound and
convenience).

At this point there are 1000 SACD's released in the US, and another 500
titles outside the US that can be imported. There are 3000-400 DVD-A's. Of
the SACDs, fully a third are classical music, and another 25% jazz. Only
DVD-A's seem to be mostly pop. My guess is the record companies are
catching on that people who do invest in these new technologies end up
buying many more bright, shiny disks than people who do not...and as a
result, I think the multi-channel hi-rez formats will exist for the older
crowd, coexisting with downloaded MP3-type songs for portable/casual/less
costly use favored by the young. Time will tell.
  #54   Report Post  
Bruce Abrams
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

"normanstrong" wrote in message
...
"Bruce Abrams" wrote in message
...

Are you truly arguing that multi-channel playback doesn't do a

better job
than stereo in the reproduction of a three dimensional sound field?

You
would need to cite some truly ground breaking research to prove this

point.
As previously discussed, only a true binaural recording with an

accurate
dummy head and pinnae specific to the intended listener is capable

of such
reproduction.


IOW, you are saying that it IS possible to reproduce a 3-dimensional
soundfield with only 2 channels--which would seem obvious, since there
are only 2 signals to supply our brain. True, the binaural technique
is the only one developed so far that does a workmanlike job of it,
but there is no theoretical reason why the eardrum can't be supplied
with the same signal by other means not yet developed.


I suppose it's theoritically possible that you some day you'll be able to
bypass the ear drum completely and wire right into the brain. That doesn't
change the fact that in 50 years of stereo and multi-channel research no
method has yet been developed to accomplish what you suggest, short of
multiple channels.

I am still bewildered by the refusal of the high-end community to embrace
multiple channels of playback. Given all that we know, it just doesn't make
sense. My system, which while very good imo, is hardly the be all and end
all. I have 5 channels of Paradigm Studio speakers (100s up front, a Studio
CC and Studio 20s for the rears) driven by a high quality source (Sony
DVP-900) and amplification. I spent a great deal of time and care level
balancing the channels and optimizing placement. While I'd certainly rather
have a pair of B&W Nautilus 800s for stereo listening, I'd challenge anyone
to tell me that a good multi-channel recording (such as Mahler's 6th with
Benjamin Zander conducting the Philharmonia on Telarc) is more realistic on
a stereo pair of Nautilus 800s than it is played through my far more modest
multi-channel system.

Any single aspect of the 800s might be better than any single aspect of my
Paradigms, but the entirety of the musical experience is simply better
realized with my very good multiple channels, than with the superlative two.

  #55   Report Post  
Cossie
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

"Bruce Abrams" wrote in message
news:rURpb.104865$Fm2.89686@attbi_s04...
But we've been talking
about
accurate, multi-channel reproduction of a given space, and that's a
different ball game.


I disagree. The Telarc multi-channel SACDs that I've heard on my own 5.1
system (Paradigm Studio 100 v2, Studio CC and Studio 20 rears) were far

more
convincing in multi-channel than they were in stereo.


No, you don't disagree. :-)

Maybe I wasn't clear. I don't claim that high quality 5.1 recordings of
music can't be superior to high quality recordings in stereo. I simply said
that it's more complicated to produce, and the extra hassle and expense
isn't justified by the market.

Bill Balmer



  #56   Report Post  
Kalman Rubinson
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

On Tue, 04 Nov 2003 20:23:06 GMT, Bruce Abrams
wrote:

While I'd certainly rather
have a pair of B&W Nautilus 800s for stereo listening, I'd challenge anyone
to tell me that a good multi-channel recording (such as Mahler's 6th with
Benjamin Zander conducting the Philharmonia on Telarc) is more realistic on
a stereo pair of Nautilus 800s than it is played through my far more modest
multi-channel system.


Agreed. Been there. Done that.

Kal
  #57   Report Post  
Uptown Audio
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

I don't want to perpetuate what is headed for a "spat" here, but want
to respond to your request about what it was that you said that was
false and misleading by being degrading to other professionals whom
you have not had the luxury of meeting. Also to clear-up how I
interpret what is helpful and what is simply chest-beating when it
comes to the twisted topic of stereo and human hearing. I expect you
to be abrasive and to stand your ground, I just don't want to beat a
dead horse here by continuing with the same "Less is More" Vs "More is
More" debate. I'm sure we will disagree about the very same thing in
another completely unrelated thread, sigh...

Dick said:

"you had better be specific as to exactly what "false and misleading
statements"

as well as:

"That is why, for decades and decades and decades, those people who DO
know how the ear senses directionality (and precious few if any of
those people are in the high-end audio business), have known that two
channel reproduction is utterly incapable of presenting a
realistic image of an acoustical sound field to a listener. The only
group of people who have consistently stated otherwise are a small
group localized almost entirely withinn the high-end audio world
who have little knowledge of the role of the HRTF and other factors
in how humans listen to asound."

Those are your words. Specifically the comments that attempt to retard
the advancements made by these individuals in the field of sound
reproduction are quite sweeping generalizations and were added as an
insult to those working in the field, many of whom are acoustic and
electrical engineers. Regardless of how you would like to characterize
it; it reflects the same way upon you. Their task has been to make
better stereo products and most of them have done so quite admirably.
You could argue that they should have been working on something else,
but that is not their task. In the same breath you refer to
me by a pseudonym of your own design ("Mr. Uptown"). I have only
referred to you as "Dick" and have no intentions of doing otherwise.

I have not insulted you, but pointed out your behavior here. If you
find that insulting, then consider the source and modify it. Instead
of throwing insults at anyone in the high-end audio industry without
any regard to who they might be or what they might have contributed
and basically acting here as a "negative campaign ad" for your
"party", you might consider offering some kind words of advice and
pleasant commentary directed at benefiting someone other than your
ego.
Continuously bashing the industry and two channel
reproduction which is an accurate, convenient and economical resource
is sure to garner much opposition. Not everyone wants a mono stack
when high fidelity stereo is an affordable option and not everyone
wants a cheapo multi-channel system when a higher quality stereo
system is a more attractive alternative. Those have been the choices
for years. I want even get into the Quadraphonic catastrophy of years
gone by or the newer attempts at surround sound with two speakers
using unconventional placement. For me, I see it boiling down
to those that watch movies and care more about the "wow factor" Vs
those that listen to music and care more about sound quality, when it
comes to selecting a multi-channel or stereo source. You can see it
another way and that is just fine. Just don't tell me that your way is
superior because of the human hearing function as I am sitting in
front of a lot of both stereo and multi-channel systems of very high
quality and can decide for myself quite easily what sounds best on
what using my own human hearing functions. Theory is one thing and
practice is another.
- Bill
www.uptownaudio.com
Roanoke VA
(540) 343-1250

"Dick Pierce" wrote in message
...
"Uptown Audio" wrote in message

news:XLvpb.70020$mZ5.434082@attbi_s54...
Very good. I don't argue with that assessment at all other than to

add
that you are not being realistic in terms of what is possible.

snip
of the listener are also reported. You do not further the science

or
the industry by insulting the intelligence of all those who have

heard
stereo recordings (and we can count most of the people in

developed
nations) when you make false and misleading statements about other
professionals in the industry. It may make you feel better, but it
does not reflect very well on you or your views when you insult

those
you have never met.


Great. Mr. Uptown, in one stroke of the pen, basically negates
a century and more of auditory research. Instead of dealing with
facts, Mr. Uptown instead resorts to insults of his own.

Mr. Uptown, why don't YOU go and see the research for yourself.
It's there, much of it written in and available in English. Read it,
understand it, see why things work the way they do.

As to "false and misleading statements about professionals," kind

sir,
you had better be specific as to exactly what "false and misleading
statements" you accuse me of or retract them.

The REAL professionals in the field of auditory perception are NOT
to be found in the high-end audio industry. Whether YOU like it or
not, the high-end audio industry is an insignificant back-water
industry, as the sheer economic facts tell you quite unambiguously.

The FACT is, that two-channel stereo reproduction was demonstrated
well over a half century ago as being wholely unable to reproduce a
reasonable facsimile of the sound field by people whose life

business
is was (and is) to study and understand the field of auditory
psychophysics. These are people, kind sir, who forgot more about the
field in a moment of distraction than the entire realm of high end
audio dealers combined ever knew.

As to the illusion, which is ALL that two-channel stero can ever be,
if you like it, fine. No one is telling you not to. But you, perhaps
by accident, wandered into a discussion about the physical

properties
of sound fields and auditory perception. Your comments, while

interesting,
are not germaine until you choose to verse yourself in the topic.

No insult intended.


  #58   Report Post  
Nousaine
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

"Uptown Audio" wrote:

...snip to content........

Another reason that I am not really
interested in multi-channel is due to the format change needed to
enjoy it and the waste of all the years of collecting stereo
recordings. I don't think anyone would argue that they would rather
sacrifice all previous recordings to have a few new enhanced, properly
recorded multi-channel ones, given the chane to really consider it.


IMO the use of a Lexicon surround processor (have owned CP-3, CP-3+, DC-1, MC-1
and MC-12) greatly improves my whole 2 channel music collection. So much so
that I seldom listen in 2-channel mode.

More directly to this point, when played in 2-channel mode all my legacy
recordings sound exactly like they did when the system was 2-channel only,
except those that have been transferred to digital media sound better.

New formats never 'eliminate' legacy programs. We still hear lots of mono.

Oddly many people do just that when they get their HT in a box systems
and use them as their sole source of entertainment.


I don't suppose they do that because the old format sounded better to them?

A lot of our
customers have two systems and use each exclusively for stereo music
and multi-channel theater respectively.


That way they get to buy 2 systems from you instead of one

That is to address the
recording issues that I have been dissatisfied with (not that anyone
else cares). It does not matter to me wheter everyone agrees with me
or not as I bought my stereo for my entertainment and not everyone
elses (the room is really not big enough for everyone - really). I do
like to voice my opinion on the value of stereo when I hear others
dismiss it as old-fashioned. Hell, I still like oatmeal...
- Bill
www.uptownaudio.com
Roanoke VA
(540) 343-1250


I love oatmeal too. Especially with a scoop of vanilla ice cream (and raisins.)
Otherwise lots of butter and raisins and perhaps a few chopped walnuts. as for
butterfat only a small amount of half-n-half or cream is acceptable.
  #59   Report Post  
Nousaine
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

Bruce Abrams wrote:




"normanstrong" wrote in message
...
"Bruce Abrams" wrote in message
...

Are you truly arguing that multi-channel playback doesn't do a

better job
than stereo in the reproduction of a three dimensional sound field?

You
would need to cite some truly ground breaking research to prove this

point.
As previously discussed, only a true binaural recording with an

accurate
dummy head and pinnae specific to the intended listener is capable

of such
reproduction.


IOW, you are saying that it IS possible to reproduce a 3-dimensional
soundfield with only 2 channels--which would seem obvious, since there
are only 2 signals to supply our brain. True, the binaural technique
is the only one developed so far that does a workmanlike job of it,
but there is no theoretical reason why the eardrum can't be supplied
with the same signal by other means not yet developed.


I suppose it's theoritically possible that you some day you'll be able to
bypass the ear drum completely and wire right into the brain. That doesn't
change the fact that in 50 years of stereo and multi-channel research no
method has yet been developed to accomplish what you suggest, short of
multiple channels.

I am still bewildered by the refusal of the high-end community to embrace
multiple channels of playback. Given all that we know, it just doesn't make
sense. My system, which while very good imo, is hardly the be all and end
all. I have 5 channels of Paradigm Studio speakers (100s up front, a Studio
CC and Studio 20s for the rears) driven by a high quality source (Sony
DVP-900) and amplification. I spent a great deal of time and care level
balancing the channels and optimizing placement. While I'd certainly rather
have a pair of B&W Nautilus 800s for stereo listening, I'd challenge anyone
to tell me that a good multi-channel recording (such as Mahler's 6th with
Benjamin Zander conducting the Philharmonia on Telarc) is more realistic on
a stereo pair of Nautilus 800s than it is played through my far more modest
multi-channel system.

Any single aspect of the 800s might be better than any single aspect of my
Paradigms, but the entirety of the musical experience is simply better
realized with my very good multiple channels, than with the superlative two.


This mirrors my experience. Once I 'went' multichannel, there was no going
back. This goes back to 1991 and a Lexicon CP-3. It gave my entire 2-channel
collection a completely up-graded level of realism.
  #60   Report Post  
Bruce Abrams
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

"Uptown Audio" wrote in message
news:iAYpb.81205$ao4.237192@attbi_s51...
*snippage of the "spat"*
Continuously bashing the industry and two channel
reproduction which is an accurate, convenient and economical resource
is sure to garner much opposition. Not everyone wants a mono stack
when high fidelity stereo is an affordable option and not everyone
wants a cheapo multi-channel system when a higher quality stereo
system is a more attractive alternative.


Me thinks your analogy is incorrect. You would have been accurate if you
would have said that not everybody wants a cheapo stereo system when a high
fidelity mono stack is a more attractive and cost effective alternative.
Many more people could afford one Nautilus 800 than could afford a stereo
pair, yes? That's not the point, though. A pair of 802s just reproduce
music better, in the same way that my multi-channel system is more
convincing in most of the ways that count than is a stereo pair of 800s.



  #61   Report Post  
Bruce Abrams
 
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Default Hi-fi, High-end and Multi-channel reproduction

"Cossie" wrote in message
news:ujWpb.80349$9E1.371161@attbi_s52...
*snip*
Maybe I wasn't clear. I don't claim that high quality 5.1 recordings of
music can't be superior to high quality recordings in stereo. I simply

said
that it's more complicated to produce, and the extra hassle and expense
isn't justified by the market.


The point is that "the market" already owns a great deal of mid-fi
multi-channel equipment. Instead of preaching about exotic cables and the
like, we should be encouraging potential consumers to upgrade their existing
HT systems so that might actually enjoy music on those same systems as well.

  #62   Report Post  
Steven Sullivan
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

Bruce Abrams wrote:
"Cossie" wrote in message
news:ujWpb.80349$9E1.371161@attbi_s52...
*snip*
Maybe I wasn't clear. I don't claim that high quality 5.1 recordings of
music can't be superior to high quality recordings in stereo. I simply

said
that it's more complicated to produce, and the extra hassle and expense
isn't justified by the market.


The point is that "the market" already owns a great deal of mid-fi
multi-channel equipment. Instead of preaching about exotic cables and the
like, we should be encouraging potential consumers to upgrade their existing
HT systems so that might actually enjoy music on those same systems as well.


Well there's still plenty of room for holy wars there, e.g., the advocates
of full-range surrounds for music (plus sub for the odd bit of
..1 material, I guess) versus the satellite/sub HT paradigm.

I've already seen two articles in the audio press about this in the
last year -- one being Ken Pohlmann's in Sound & Vision, another in
Sensisble Sound, both advocating the position that orchestral music,
in particular, suffers when played over most sat/sub systems due
to weakness in the crossover frequency region and mid-to-upper bass.

--
-S.

  #64   Report Post  
Harry Lavo
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

"Steven Sullivan" wrote in message
newsU9qb.111819$HS4.967432@attbi_s01...
Bruce Abrams wrote:
"Cossie" wrote in message
news:ujWpb.80349$9E1.371161@attbi_s52...
*snip*
Maybe I wasn't clear. I don't claim that high quality 5.1 recordings

of
music can't be superior to high quality recordings in stereo. I

simply
said
that it's more complicated to produce, and the extra hassle and

expense
isn't justified by the market.


The point is that "the market" already owns a great deal of mid-fi
multi-channel equipment. Instead of preaching about exotic cables and

the
like, we should be encouraging potential consumers to upgrade their

existing
HT systems so that might actually enjoy music on those same systems as

well.

Well there's still plenty of room for holy wars there, e.g., the advocates
of full-range surrounds for music (plus sub for the odd bit of
.1 material, I guess) versus the satellite/sub HT paradigm.

I've already seen two articles in the audio press about this in the
last year -- one being Ken Pohlmann's in Sound & Vision, another in
Sensisble Sound, both advocating the position that orchestral music,
in particular, suffers when played over most sat/sub systems due
to weakness in the crossover frequency region and mid-to-upper bass.


Yes, but they were speaking largely of the mini-satellite, "one-box" type of
systems. Anybody serious about music will ultimately want to upgrade to
"full range" satellites (for want of a better term) that can cross-over at
55-80hz, or better yet to full range system. If TV is important, then the
center channel can have its own "full range" center along with its own
matched sub, so in effect it becomes a full range center. An LFE sub can
add to orchestral and pipe organ recordings, but is not essential for most
musical reproduction. As Bruce says, the trick is to get people to either
plan better or upgrade el cheapo systems if they have an interest in music.

As for we hi-fi aficionados, there are several routes. Since high-end
speakers have become available at lower price points, and since eBay/the
internet has made an easily accessible used market, these become economical
ways to translate a good two-channel system into a good five-channel system.
Any TV/video then becomes just an added plus.

This by the way has been my approach. Video is not nearly as important to
me as audio, so I have a five-full range reasonable matched system (using
three stereo preamps and stereo power amps, all bought used) along with both
moderately priced SACD and a DVD, DVD-A players (and phono and DAT and
Open-Reel). So I get really terrific surround sound, and when I want movies
I simply wheel the tv (on a wheeled stand) from the side of the room (where
it normally sits off the left of the system) to a position close to the
center speaker. Voila, home theatre (but on a scale commensurate with my
interest). And believe it or not, this is done in a room that still
maintains living room character (as opposed to audio showroom character).

  #65   Report Post  
Bruce Abrams
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

"Mkuller" wrote in message
news:Eebqb.112984$Fm2.100883@attbi_s04...
*snip*
Personally, I am not interested in multi-channel music reproduction - I'm

a
2-channel die hard.


And thus I return to my original question. Why do people in this hobby, who
appear to be otherwise committed to the search for the most realistic
reproduction of music possible, profess a lack of interest in technology
that can yield far more convincing results than their present technology?
So far, the only explanations have been along the lines of "stereo is good
enough."



  #66   Report Post  
Steven Sullivan
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

Harry Lavo wrote:
"Steven Sullivan" wrote in message
newsU9qb.111819$HS4.967432@attbi_s01...
Bruce Abrams wrote:
"Cossie" wrote in message
news:ujWpb.80349$9E1.371161@attbi_s52...
*snip*
Maybe I wasn't clear. I don't claim that high quality 5.1 recordings

of
music can't be superior to high quality recordings in stereo. I

simply
said
that it's more complicated to produce, and the extra hassle and

expense
isn't justified by the market.


The point is that "the market" already owns a great deal of mid-fi
multi-channel equipment. Instead of preaching about exotic cables and

the
like, we should be encouraging potential consumers to upgrade their

existing
HT systems so that might actually enjoy music on those same systems as

well.

Well there's still plenty of room for holy wars there, e.g., the advocates
of full-range surrounds for music (plus sub for the odd bit of
.1 material, I guess) versus the satellite/sub HT paradigm.

I've already seen two articles in the audio press about this in the
last year -- one being Ken Pohlmann's in Sound & Vision, another in
Sensisble Sound, both advocating the position that orchestral music,
in particular, suffers when played over most sat/sub systems due
to weakness in the crossover frequency region and mid-to-upper bass.


Yes, but they were speaking largely of the mini-satellite, "one-box" type of
systems. Anybody serious about music will ultimately want to upgrade to
"full range" satellites (for want of a better term) that can cross-over at
55-80hz,


OK, but then....

or better yet to full range system.


....and again, if even 55=80Hz crossed-over satellites aren't considered adequate,
this sets up a dichotomy between sat/sub advocates
and 'full-range all around ' advocates. You're just repeating what I
wrote.

If TV is important, then the
center channel can have its own "full range" center along with its own
matched sub, so in effect it becomes a full range center. An LFE sub can
add to orchestral and pipe organ recordings, but is not essential for most
musical reproduction.


Speak for yourself. I listen to lots of prog rock and electronic music.
Bass pedals and synthesizers can and do dip below 50 Hz with some
frequency. Modern pop and rap also use these frequencies.

--

-S.

  #68   Report Post  
Nousaine
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

Bruce Abrams wrote:

"Mkuller" wrote in message
news:Eebqb.112984$Fm2.100883@attbi_s04...
*snip*
Personally, I am not interested in multi-channel music reproduction - I'm

a
2-channel die hard.


And thus I return to my original question. Why do people in this hobby, who
appear to be otherwise committed to the search for the most realistic
reproduction of music possible, profess a lack of interest in technology
that can yield far more convincing results than their present technology?
So far, the only explanations have been along the lines of "stereo is good
enough."


This is pretty much a common phenomenon in the technology substitution
life-cycle. When the new technology appears on the horizon the old technology
suddenly gets much better. For example, it was well known since to 60s that
radial tracking tone arms were a superior alternative to pivoted arms but aside
from a few expensive models radial arms just never caught-on ----- until cd hit
and then even close-n-plays had radial arms. (sure, pivoted arms remain a
residual-use technology.)

And the Champions of the new technology often fail to ever convince the
champions of the old that the new is superior because the latter has spent
decades optimizing the old stuff.

What happens is that the old-guys eventually die and subsequent generations
have never doubted the new; which in itself may have fallen victim to further
technology progress.

There was a time when the technology cycle was 3 decades but it has been
halving with each generation. For example lp was king for about 30 years; cd
was king for about 15, when its successor, DVD, was introduced in 1996.

Look for high-definition DVD/with multichannel audio to hit within 2 years. By
the way there is a new de-facto music DVD standard (dolby digital 5.1) which is
far more accessible than either SACD or DVD-A.

Yeah, I have all of them and "2-channel stereo" just isn't "good enough' all by
itself when a good surround processor (best is Lexicon, but Dolby II is pretty
good too) can make your entire 2-channel library brand new. .

  #69   Report Post  
Uptown Audio
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

That's not good math. Stereo has obvious advantages sonically to mono
and has just under twice the cost as all the typical stereo gear
shares a single chassis and only adds a few other components
internally to produce stereo (with the exception of the speaker of
course). Use your own example and go from a pair of speakers (your
choice, and poor taste excepted) and five plus a sub - do the math. By
comparison, six channel sound costs three times as much as it requires
a lot more in the way of speakers and internal components as well as
connections, etc on the rear of the components. The better value is
easy to see and hear. What people do to "get into" six channel systems
at their budget is to reduce the overall quality of the components by
a factor of 3. Now, anyone can say that the sum of the parts does or
does not equal the whole as that is your perception, but the cost of
materials does not vary. At least be fair when you make such
comparisons as you are only cheating yourself. If you can afford three
times the cost of what you find to be musically satisfying in stereo
to "get into" a six channel system and have the space to fit it into,
then more power to you.
- Bill
www.uptownaudio.com
Roanoke VA
(540) 343-1250

"Bruce Abrams" wrote in message
news:NJ8qb.112725$Tr4.315515@attbi_s03...
"Uptown Audio" wrote in message
news:iAYpb.81205$ao4.237192@attbi_s51...
*snippage of the "spat"*
Continuously bashing the industry and two channel
reproduction which is an accurate, convenient and economical

resource
is sure to garner much opposition. Not everyone wants a mono stack
when high fidelity stereo is an affordable option and not everyone
wants a cheapo multi-channel system when a higher quality stereo
system is a more attractive alternative.


Me thinks your analogy is incorrect. You would have been accurate

if you
would have said that not everybody wants a cheapo stereo system when

a high
fidelity mono stack is a more attractive and cost effective

alternative.
Many more people could afford one Nautilus 800 than could afford a

stereo
pair, yes? That's not the point, though. A pair of 802s just

reproduce
music better, in the same way that my multi-channel system is more
convincing in most of the ways that count than is a stereo pair of

800s.


  #70   Report Post  
William Sommerwerck
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

Personally, I am not interested in multi-channel music reproduction - I'm a
2-channel die hard. But, a couple of years ago I did an interview with Paul
Stubblebine, who is regarded as one of the best high end audiophile disc
masterers. He was just beginning to do work on DVD-A and SACD after
working for many years with 2 channel. At that time he had mixed feelings
about surround sound (since it was new)...


Surround sound was first used commercially in 1940 in "Fantasia," then in
Cinerama in 1950. It was revived in late 1969 by Vanguard and Acoustic
Research, and became common in movies in the late '70s. I have at least
100 surround LPs I purchased in the '70s, and have the high-performance
decoders to play them.

Surround sound is anything BUT new.

One might dislike particular implementations of surround sound, but, properly
implemented, surround is more realistic and/or more fun to listen to.

The reason some people don't like surround sound is that they've never heard
_good_ surround sound.



  #71   Report Post  
Bruce Abrams
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

"Uptown Audio" wrote in message
news:%7gqb.113769$HS4.984143@attbi_s01...
That's not good math. Stereo has obvious advantages sonically to mono
and has just under twice the cost as all the typical stereo gear
shares a single chassis and only adds a few other components
internally to produce stereo (with the exception of the speaker of
course). Use your own example and go from a pair of speakers (your
choice, and poor taste excepted) and five plus a sub - do the math.


My point was that a more modestly equipped multi-channel system will often
provide a much more realistic musical reproduction than will two higher cost
stereo channels. Five channels of a mid-priced speaker of your choice set
up in a proper SACD Multi-channel configuration (I'll leave the poor taste
comment untouched) will almost certainly provide a more enjoyable musical
experience than a single stereo pair of the same manufacturer's flagship
speaker.

*snip*
What people do to "get into" six channel systems
at their budget is to reduce the overall quality of the components by
a factor of 3.


Actually, you're incorrect. Many people might reduce the individual quality
of the components, but as long as they're still buying quality stuff (as
opposed to "system-in-a-box" type of junk), they will still have increased
the overall quality of their system as compared to the would-have-been
stereo.

Now, anyone can say that the sum of the parts does or
does not equal the whole as that is your perception, but the cost of
materials does not vary. At least be fair when you make such
comparisons as you are only cheating yourself. If you can afford three
times the cost of what you find to be musically satisfying in stereo
to "get into" a six channel system and have the space to fit it into,
then more power to you.


And again, you don't need to spend three times the cost of a "musically
satisfying" stereo, to get a more satisfying multi-channel system.

A specific examply with Paradigm Studio speakers...

Stereo pair of Studio 100s - $2,100

5 Studio 40's - $2,000 and add a Servo-15 at $1,500 = $3,500. Hardly 3
times the cost of the stereo pair.

Properly configured and placed for multi-channel SACD, the MC system will be
far more satisfying.

  #72   Report Post  
Steven Sullivan
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

Uptown Audio wrote:
That's not good math. Stereo has obvious advantages sonically to mono


Tell that to the 'back to mono' contingent.

--

-S.

  #73   Report Post  
Uptown Audio
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

No thanks. That would be like you convincing me on multi-channel. Each
likes what they like for their own reasons. Move-on...
- Bill
www.uptownaudio.com
Roanoke VA
(540) 343-1250

"Steven Sullivan" wrote in message
news:VUlqb.121125$e01.437454@attbi_s02...
Uptown Audio wrote:
That's not good math. Stereo has obvious advantages sonically to

mono

Tell that to the 'back to mono' contingent.

--

-S.


  #74   Report Post  
Nousaine
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

Bruce Abrams wrote:

"Uptown Audio" wrote in message
news:%7gqb.113769$HS4.984143@attbi_s01...
That's not good math. Stereo has obvious advantages sonically to mono
and has just under twice the cost as all the typical stereo gear
shares a single chassis and only adds a few other components
internally to produce stereo (with the exception of the speaker of
course). Use your own example and go from a pair of speakers (your
choice, and poor taste excepted) and five plus a sub - do the math.


Actually the 1-2 channel conversion, given the time, was a LOT more expensive
than an upgrade from 2 to 5.1 channels. In the first case one had to either buy
an identical front channel OT abandon his already owner speaker and update
electronics and playback gear.

Upgrading an existing 2-channel system the owner may already have a powered
subwoofer (if not why hasn't Uptown seen to that ? but his existing
loudspeakers do not need to be changed. And his 2-channel sources need no
change.

So a new receiver, a new center and pair of surrounds makes the convversion
complete. The addition of new sources is completely optional; AS IT WAS with
the conversion from 1 to 2 channels.

Typically it isn't increasing the cost by a factor of three. But, even if it
were, IMO folks generally are pleased, satisfied and happy with that
investment.

One reason is that multi-channel (and Home Theater) systems tend to be much
better implemented than 2-channel systems because they are often
"screen-based."

No one ever agrues that a 'smaller' screen is better than a larger one. So
people choose a video device as large as they can afford and find a place for
IT, which is usually along a wall.. Next, they move furniture into the room,
away from walls, so that the common "listening" seats can "see" the screen.

THEN: the terms left, center and right have a whole new meaning AND there's no
arguing over it.

IME Home Theater systems, even those with modest cost, are often better SET-UP
than many of the high-end audio 2-channel systems I've encountered


My point was that a more modestly equipped multi-channel system will often
provide a much more realistic musical reproduction than will two higher cost
stereo channels. Five channels of a mid-priced speaker of your choice set
up in a proper SACD Multi-channel configuration (I'll leave the poor taste
comment untouched) will almost certainly provide a more enjoyable musical
experience than a single stereo pair of the same manufacturer's flagship
speaker.

*snip*
What people do to "get into" six channel systems
at their budget is to reduce the overall quality of the components by
a factor of 3.


Actually, you're incorrect. Many people might reduce the individual quality
of the components, but as long as they're still buying quality stuff (as
opposed to "system-in-a-box" type of junk), they will still have increased
the overall quality of their system as compared to the would-have-been
stereo.


Exactly; many high-end audio enthusiasts "talk the talk" but generally think
that "throwing money" at a problem is the best solution.


Now, anyone can say that the sum of the parts does or
does not equal the whole as that is your perception, but the cost of
materials does not vary. At least be fair when you make such
comparisons as you are only cheating yourself. If you can afford three
times the cost of what you find to be musically satisfying in stereo
to "get into" a six channel system and have the space to fit it into,
then more power to you.


And again, you don't need to spend three times the cost of a "musically
satisfying" stereo, to get a more satisfying multi-channel system.


I agree.


A specific examply with Paradigm Studio speakers...

Stereo pair of Studio 100s - $2,100

5 Studio 40's - $2,000 and add a Servo-15 at $1,500 = $3,500. Hardly 3
times the cost of the stereo pair.

Properly configured and placed for multi-channel SACD, the MC system will be
far more satisfying.


Well it might be 3 times the cost of a brand new HTIB system; but a real sound
quality enthusiast will already own the Studio 100s or something similar.

  #75   Report Post  
Penury
 
Posts: n/a
Default Hi-fi, High-end and Multi-channel reproduction

On Wed, 05 Nov 2003 01:42:38 GMT, "Uptown Audio"
wrote:

(among many other things)

I want even get into the Quadraphonic catastrophy of years
gone by or the newer attempts at surround sound with two speakers
using unconventional placement.


The "Quadraphonic catastrophy" was only a "catastrophy" in the
commercial sense. I was a late adapter to Quad (SQ) and bought an
Audionics Space and Image Composer in the 70s. I enjoyed many years
(and still enjoy) of four channel audio from SQ and non-SQ LPs and as
a bonus enjoyed movies Dolby encoded on VHS before any decoders were
generally available.
I find it interesting that both you and Dick look at the industry
from a strictly commercial viewpoint while I look at the industry from
a users viewpoint. DIYing all that is possible and practical not only
to save money and obtain "custom" items, but the self-satisfaction of
learning and pride of accomplishment.

-=Bill Eckle=-

Vanity Web pages at:
http://www.wmeckle.com

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