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  #1   Report Post  
Johnd1001
 
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Default science vs vs pseudo science

There is simply no substitute for a complete set of truly accurate measurements
for evaluationg the potential for loudspeakers to accurately reproduce complex
musical sounds.

John D
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S888Wheel
 
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Default science vs vs pseudo science


There is simply no substitute for a complete set of truly accurate measurements
for evaluationg the potential for loudspeakers to accurately reproduce complex
musical sounds.



OtOH if the purpose of speakers is to listen to them and enjoy the music they
reproduce there is no substitute for listening to them to determine which will
do the best job for that purpose.
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Howard Ferstler
 
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Default science vs vs pseudo science

(S888Wheel) wrote in message ...

There is simply no substitute for a complete set of truly accurate measurements
for evaluationg the potential for loudspeakers to accurately reproduce complex
musical sounds.


OtOH if the purpose of speakers is to listen to them and enjoy the music they
reproduce there is no substitute for listening to them to determine which will
do the best job for that purpose.


While we all want speakers to entertain us, the idea of "high-fidelity
sound reproduction" is to have the components involved be a sonically
transparent as possible. That way, the recording entertains us in the
least sonically offensive way possible and best reveals just what it
is that we have on the recording. That is a reference standard, and if
we dump that concept then basically we are saying that taste rules and
that the whole concept of hi-fi sound reproduction is a pointless.
There has to be some sort of reference standard for what this hobby
stands for, and to say that it rotates about taste and preference and
only taste and preference shoots the whole enterprise in the head.

One may prefer a given set of speakers, because they suit one's taste.
Perhaps they like C&W music and like the kind of sound that a standard
juke box delivers. Or perhaps they hang out at discos and like their
speakers at home to deliver the same kind of overall bass-thumping
impact. Or perhaps they like the midrange frequencies somewhat
withdrawn in level, in order to have a mellow sounding recording that
still has sparkle in the top octave. Or perhaps they like the kind of
tubby bass you get with woofer systems that have ample even-order
harmonic distortion. Or perhaps they do not like systems that go deep
into the bass range, because then they cannot hear the midrange with
the forward clarity they prefer.

There are all sorts of preferences out there, but I cannot see how we
can have a hobby that professes to be involved with the accurate
reproduction of sound if we do not at least set standards for low
distortion, flat response, and decent bandwidth with every component
in the chain. Note that these parameters do not fully take into
account dispersion and first-arrival phase characteristics with
speakers, and this is fine. I think that when it comes to such things
taste can play a part, simply because different environments and
different recordings respond differently to speakers with differing
dispersion patterns, particularly as it relates to the strength of the
first-arrival signals and the stability of the "critical distance"
between the direct and reverberant fields. I have heard excellent
examples of both types (including two different and fine Dunlavy
models that I have reviewed in The Sensible Sound), and have no
problem when it comes to taste and disperion in speakers. However,
this does not mean that measurements do not count. Rather, it tells us
that measurements inform us about just what a speaker is doing in
terms of the more important performance parameters.

I continue to be amazed that some so-called hi-fi enthusiasts appear
to like components that have verifiable distortion characteristics,
admit that they like distorted components (see the above comments
about how certain speakers may sound, and of course remember what we
can get from certain kinds of amplifiers), and pay good money for the
pleasure.

Taste, preference, and pleasure are all well and good, but it is a
good idea to remember that the bottom line is the ability to cleanly
and accurately reproduce the input signals and leave the modifications
to the recording engineer at his end.

Howard Ferstler

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Mkuller
 
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(Howard Ferstler) wrote:
While we all want speakers to entertain us, the idea of "high-fidelity
sound reproduction" is to have the components involved be a sonically
transparent as possible.


So far, so good.

That way, the recording entertains us in the
least sonically offensive way possible and best reveals just what it
is that we have on the recording. That is a reference standard, and if
we dump that concept then basically we are saying that taste rules and
that the whole concept of hi-fi sound reproduction is a pointless.

Sorry but taste (and listening) does rule, not measurements. Since most
audiophiles were not at the recording session and don't have access to the
master tapes, your idea that this is a meaningful reference is misguided.

There has to be some sort of reference standard for what this hobby
stands for, and to say that it rotates about taste and preference and
only taste and preference shoots the whole enterprise in the head.

snip
There are all sorts of preferences out there, but I cannot see how we
can have a hobby that professes to be involved with the accurate
reproduction of sound if we do not at least set standards for low
distortion, flat response, and decent bandwidth with every component
in the chain.

snip
I continue to be amazed that some so-called hi-fi enthusiasts appear
to like components that have verifiable distortion characteristics,


Since all components have some distortion (none are perfect at reproducing an
input) it remains the preference of each consumer-audiophile as to what
distortions they can live with.

admit that they like distorted components (see the above comments
about how certain speakers may sound, and of course remember what we
can get from certain kinds of amplifiers), and pay good money for the
pleasure.

Taste, preference, and pleasure are all well and good, but it is a
good idea to remember that the bottom line is the ability to cleanly
and accurately reproduce the input signals and leave the modifications
to the recording engineer at his end.

A pedantic pronouncement if I have ever heard one. If measurements are your
reference, then you don't need to audition a set of speakers before reviewing
or purchasing do you? One speaker has 3% distortion at 8000Hz and another has
3% distortion at 80Hz? The amount of distortion is the same, isn't it? Which
speaker will sound better? By your standards, who cares?

The only meaningful reference for evaluating audio components is to "The
Absolute Sound" of live unamplified music in a real space. Does the component
reproduce a 'believable' reproduction of that sound as you remember it, or not?
As a music lover, nothing else matters.
Regards,
Mike
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Gary Eickmeier
 
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Default science vs vs pseudo science

Howard Ferstler wrote:

While we all want speakers to entertain us, the idea of "high-fidelity
sound reproduction" is to have the components involved be a sonically
transparent as possible. That way, the recording entertains us in the
least sonically offensive way possible and best reveals just what it
is that we have on the recording. That is a reference standard, and if
we dump that concept then basically we are saying that taste rules and
that the whole concept of hi-fi sound reproduction is a pointless.
There has to be some sort of reference standard for what this hobby
stands for, and to say that it rotates about taste and preference and
only taste and preference shoots the whole enterprise in the head.


The only reference standard is the sound of live music in a real
acoustic space (realism). It is not a zero sum gain system, like a
photograph or a motion picture, which attempts to present your eyes with
a reproduction of precise shapes and colors. Nor is it an "accuracy"
system, such that if you can just place a measurement microphone in
front of your speakers and get a waveform that is exactly what is on the
recording, then you are done. There is a whole world of spacial
requirements that need to be met before you have realism.

I can give you an excellent example of what I mean.

Suppose you love the sound of Oscar Peterson so much you want to
reproduce it with the greatest realism possible in this life. You
purchase a Yamaha electronic player piano, and some discs of Peterson
recording his keystrokes on a recorder piano just like it. This
technology is mature enough that every nuance of timing and touch can be
recorded and reproduced on any of these pianos.

No, you don't place it in a well-damped room so that you hear only the
sound of the piano. You place it - well, anywhere that a real piano
would sound good, because that is exactly what it is. And you let it
play. It sounds unarguably real, because it IS real. Yet it is not a
zero sum gain system, because it may not sound exactly like it did in
the room that Peterson recorded it in, and the instrument that is
playing may not be exactly the same model he played. Nor is it an
accuracy system, because you can place it in a concert hall for one kind
of sound, a recording studio for another, or a living room for yet
another. No matter, they all sound different, but they all sound real,
and they are unmistakably Peterson, playing in a real space. What's
more, you can walk all around the piano and hear it in different
perspectives.

So you have a system of music reproduction that is extremely realistic
without having the quality called "accuracy." There is no point
whatsoever in measuring the reproduction and comparing the waveforms to
the original "recording," because the recording is only a set of data
for the keystrokes, and the one has nothing to do with the other. The
recording could be thought of as a sort of a concentrate, intended to be
mixed with a good acoustic space on playback in order to sound real.

Yes, it would be possible to measure the output of the player piano in
an anechoic chamber and compare it to the sound of the original in the
same environment, but that would have nothing to do with how the system
works in the real, intended playback world. Similarly, it is good for
speakers to measure with low distortion and accurate frequency response
with test signals, but meeting those requirements is not the end of the
story, but rather only a beginning.

Now, if we could only get a player bass and some player drums, I would
be in heaven! Then we could arrange them in a similar geometrical
arrangement to the original, and we would have the ultimate realistic
jazz trio!

Gary Eickmeier



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Steven Sullivan
 
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Default science vs vs pseudo science

Gary Eickmeier wrote:
Howard Ferstler wrote:


While we all want speakers to entertain us, the idea of "high-fidelity
sound reproduction" is to have the components involved be a sonically
transparent as possible. That way, the recording entertains us in the
least sonically offensive way possible and best reveals just what it
is that we have on the recording. That is a reference standard, and if
we dump that concept then basically we are saying that taste rules and
that the whole concept of hi-fi sound reproduction is a pointless.
There has to be some sort of reference standard for what this hobby
stands for, and to say that it rotates about taste and preference and
only taste and preference shoots the whole enterprise in the head.


The only reference standard is the sound of live music in a real
acoustic space (realism).


No two performances or mastering sessions are going to be the same.
So unless you are playing live microphone feeds ove ryour home
system, pursuit of 'absolute sound' with reference to live preformance
is going to mean tweaking your system differently for each recording
you play back, trying to get it to conform to that 'absolute' standard.
What works to get an early 80's DG recording to reach the 'absolute
sound' might not work well to get 50's Mercury Living Presence recording
to do the same.

On the other hand, if you aim to let your system tranduce the
what's on the disc as transparently as possible, then you leave it to
the record's performers and producers to make the sound a 'absolute'.
Which, IMO is the way it should be.

This is a simplification, of course. It assumes that at least SOME
recordings do approach or reach the 'absolute sound' status, and
taht all that's required is to provide them with as transparent
a system as you can.

Suppose you love the sound of Oscar Peterson so much you want to
reproduce it with the greatest realism possible in this life. You
purchase a Yamaha electronic player piano, and some discs of Peterson
recording his keystrokes on a recorder piano just like it. This
technology is mature enough that every nuance of timing and touch can be
recorded and reproduced on any of these pianos.


No, you don't place it in a well-damped room so that you hear only the
sound of the piano. You place it - well, anywhere that a real piano
would sound good, because that is exactly what it is. And you let it
play. It sounds unarguably real, because it IS real.


It would sound 'real' in a well-damped room too ; it would sound like a real
piano in a well-damped room. In the setup you describe, it sounds like
a real piano in whatever room you use. So the question boils down
to : what do you mean by *real*? That the instrument sound like
it's in the particular room you are using? Or that it sound like
it's in a room, but not yours?

So you have a system of music reproduction that is extremely realistic
without having the quality called "accuracy." There is no point
whatsoever in measuring the reproduction and comparing the waveforms to
the original "recording," because the recording is only a set of data
for the keystrokes, and the one has nothing to do with the other.


A Yamaha keystroke-capture piano is not the same sort of recording as a CD,
for the reason you cite: it does not even attempt to capture contextual
information. It's like running an electric guitar straight into the
mixing console, versus setting up a mike in the rehearsal room.



--
-S.
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Gary Eickmeier
 
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Default science vs vs pseudo science

Steven Sullivan wrote:

On the other hand, if you aim to let your system tranduce the
what's on the disc as transparently as possible, then you leave it to
the record's performers and producers to make the sound a 'absolute'.
Which, IMO is the way it should be.


Steven,

You still haven't quite "clicked" on what I said. It is not a "what's on
the disc" system; the original performance was not recorded from the
perspective of a person listening in the concert hall. Many recordings
are very close-miked, concocted creations of the producer. Transparency,
or "hearing into the recording," has little to do with what the system
is. Even with the most careful, simply miked live recording, the
information is just not in the recording to enable you to place yourself
there, where the audience might have heard the performance and complete
acoustics of the original space. Such a system exists, but it is
binaural recording, not stereophonic as the system is most often employed.

Another good example of what I mean would be the live-vs-recorded demos
from the 50s and 60s (and some more recent). The way you fool people
into thinking that the speakers are the real thing is to make very close
recordings which are almost anechoic, so that when they are played back
in a real room, they take on only the acoustics of the room they are in.
I present this as another example of a realistic system of recording and
reproduction that is not a "you are there" system, but rather a "they
are here" system. And that is OK, because it can sound very real. And
the realism would increase if the speakers for the instruments in
question had radiation patterns that were close to those instruments.

It would sound 'real' in a well-damped room too ; it would sound like a real
piano in a well-damped room. In the setup you describe, it sounds like
a real piano in whatever room you use. So the question boils down
to : what do you mean by *real*? That the instrument sound like
it's in the particular room you are using? Or that it sound like
it's in a room, but not yours?


The more anechoically (or closer) it is recorded, the more it will sound
like it's in your room. The more of the original room or hall's acoustic
that is contained in the recording, the more it may sound like it's
playing in that space. But loudspeaker sound in a real room cannot get
all the way to the recorded space, except possibly in some exotic lab
situations with many speakers and channels. Most recordings are closer
to the former situation, miked close to the performance, but we must
include some "hall sound," whether in the recording step or in post
production, because few of us can listen in a large, good acoustic
space. More often in cars and Walkmen!

A Yamaha keystroke-capture piano is not the same sort of recording as a CD,
for the reason you cite: it does not even attempt to capture contextual
information. It's like running an electric guitar straight into the
mixing console, versus setting up a mike in the rehearsal room.


Quite often what we hear live is the electric guitar or the bass plugged
straight into an amp and played on a musical instrument speaker set on
the stage next to them. We don't want to record this signal straight
into the mix without some spacial processing, because we don't usually
want any instrument to attach itself to the speaker grills.

But have you ever noticed that the closer miked instruments (and
singers) will "pull out" into your room, and the more distant miked
sounds will settle back around or behind the front wall of the listening
room? This is mainly because the close-miked stuff takes on more of your
room's acoustic space, and so seems to pop out in front of the rest.
Provided your speakers are pulled out a bit from the walls.

My point is that all of this transparency, and accuracy, and hearing
into the recording, are red herrings, myths, engineering urban legends
that will not die. If we change our thinking on all this, we just might
start getting somewhere.

Gary Eickmeier

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Norman Schwartz
 
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"Mkuller" wrote in message
...

The only meaningful reference for evaluating audio components is to "The
Absolute Sound" of live unamplified music in a real space. Does the

component
reproduce a 'believable' reproduction of that sound as you remember it, or

not?
As a music lover, nothing else matters.


It then follows that you will 1 component which sounds most as does
orchestra row X, then row Y, then balcony 1, 2 etc., etc. plus where is
"real space"? Is Carnegie or Avery Fisher Hall the real space? People have
different hearing capabilities as do component manufacturers themselves. How
is one to establish the most believable reproduction? Believable to whose
hearing, believable for what space?
  #9   Report Post  
Steven Sullivan
 
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Default science vs vs pseudo science

Gary Eickmeier wrote:
Steven Sullivan wrote:


On the other hand, if you aim to let your system tranduce the
what's on the disc as transparently as possible, then you leave it to
the record's performers and producers to make the sound a 'absolute'.
Which, IMO is the way it should be.


Steven,


You still haven't quite "clicked" on what I said. It is not a "what's on
the disc" system; the original performance was not recorded from the
perspective of a person listening in the concert hall.


Some are, some aren't. The ones that aren't may attempt to simulate
that effect.

Many recordings
are very close-miked, concocted creations of the producer. Transparency,
or "hearing into the recording," has little to do with what the system
is. Even with the most careful, simply miked live recording, the
information is just not in the recording to enable you to place yourself
there, where the audience might have heard the performance and complete
acoustics of the original space. Such a system exists, but it is
binaural recording, not stereophonic as the system is most often employed.


And this goes to my point -- what is meant by 'real'? Are you attempting
to recreate in your living room the sensation of being in a concert hall,
seventh row center? Or are you attempting to simulate the sensation of
real instruments playing in *your* room?

The original 'performance' may have been recorded by any number of tricks,
includign recording differnet bits of it at different sessions, dropping
in replacement notes, etc. You probably wouldn't want to recreate *that*
sensation at all. But when it's finally mixed and mastered, the engineers
attempt to create the illusion of an integral performance in space (this
won't necessariuly hold true for pop music, of course). The 'final
reference' here is what the producers heard in the studio. Good or bad,
that's what was intended to be heard at home, even though all
mixing/mastering engineers are aware that it'll likely never sound quite
the same in someone's home as it did in the mixing/mastering studio.

Another good example of what I mean would be the live-vs-recorded demos
from the 50s and 60s (and some more recent). The way you fool people
into thinking that the speakers are the real thing is to make very close
recordings which are almost anechoic, so that when they are played back
in a real room, they take on only the acoustics of the room they are in.
I present this as another example of a realistic system of recording and
reproduction that is not a "you are there" system, but rather a "they
are here" system. And that is OK, because it can sound very real. And
the realism would increase if the speakers for the instruments in
question had radiation patterns that were close to those instruments.


But the room they are in matters. The sound of a *real* orchestra
playing in a 12 X 10 X 8 room might not be something one would want to hear.
So the idea is not simply to make instruments sound 'real', but also
to create an illusion of another room.

It would sound 'real' in a well-damped room too ; it would sound like a real
piano in a well-damped room. In the setup you describe, it sounds like
a real piano in whatever room you use. So the question boils down
to : what do you mean by *real*? That the instrument sound like
it's in the particular room you are using? Or that it sound like
it's in a room, but not yours?


The more anechoically (or closer) it is recorded, the more it will sound
like it's in your room. The more of the original room or hall's acoustic
that is contained in the recording, the more it may sound like it's
playing in that space. But loudspeaker sound in a real room cannot get
all the way to the recorded space, except possibly in some exotic lab
situations with many speakers and channels. Most recordings are closer
to the former situation, miked close to the performance, but we must
include some "hall sound," whether in the recording step or in post
production, because few of us can listen in a large, good acoustic
space. More often in cars and Walkmen!


Here we agree...the the illusion of space and integrity can be engineered in
elsewhere in the recording/mixing/mastering chain, such that playback
in the studio simulates 'being there' at an idealized performance
in an idealized performance space. That I presume, is what the
engineers are aiming for.

I'm not saying that the simulation is perfect.

A Yamaha keystroke-capture piano is not the same sort of recording as a CD,
for the reason you cite: it does not even attempt to capture contextual
information. It's like running an electric guitar straight into the
mixing console, versus setting up a mike in the rehearsal room.


Quite often what we hear live is the electric guitar or the bass plugged
straight into an amp and played on a musical instrument speaker set on
the stage next to them. We don't want to record this signal straight
into the mix without some spacial processing, because we don't usually
want any instrument to attach itself to the speaker grills.


This strikes me as quibbling, or maybe I'm still not getting it.
The point is that a keystroke-capture piano *is* analogous to the
ultimate in close-miking: straight from the
instrument to the board with no processing..and no ambience cues,
either real or faked, and not analogous to symphonies on CD.
It may or may not sound the way a piano 'should' to different listeners
in different spaces, and to that extent it may or may not sound 'real
although it is undoubtedly always 'really' in the room.

But have you ever noticed that the closer miked instruments (and
singers) will "pull out" into your room, and the more distant miked
sounds will settle back around or behind the front wall of the listening
room? This is mainly because the close-miked stuff takes on more of your
room's acoustic space, and so seems to pop out in front of the rest.
Provided your speakers are pulled out a bit from the walls.


My point is that all of this transparency, and accuracy, and hearing
into the recording, are red herrings, myths, engineering urban legends
that will not die. If we change our thinking on all this, we just might
start getting somewhere.


Well, 'accuracy' is a red herring in that the source recordings are not
equally 'accurate' to begin with; the devotee of the 'absolute sound'
-- an idealized live performance in an idealized space --
would therefore be forever re-adjusting his system to suit different
recordings, in an attempt to make them all sound like the 'absolute'.
It's a red herring even if the 'absolute' is taken to be not an
ideal live performance, but the sound of the playback in the original
studio (i.e., what the producers heard). Few of us are privy to
that experience, so how can we recreate it 'accurately'?

But we *can* at least define 'accurate' in terms of what is done to
the *signal* between the time it is read off the recording medium and
the time it leaves the speaker as a sound wave.

--
-S.

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Mkuller
 
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Default science vs vs pseudo science

"Mkuller" wrote in message
The only meaningful reference for evaluating audio components is to "The
Absolute Sound" of live unamplified music in a real space. Does the

component
reproduce a 'believable' reproduction of that sound as you remember it, or

not?
As a music lover, nothing else matters.



"Norman Schwartz" wrote:
It then follows that you will 1 component which sounds most as does
orchestra row X, then row Y, then balcony 1, 2 etc., etc. plus where is
"real space"? Is Carnegie or Avery Fisher Hall the real space? People have
different hearing capabilities as do component manufacturers themselves. How
is one to establish the most believable reproduction? Believable to whose
hearing, believable for what space?


Good point. You're asking "what is your reference and what are your 'listening
biases'?" To answer your last question first - believable to me or whoever is
making the purchasing decision is all that matters.

Personally, I like to sit in the center of the orchestra in about Row M (where
the acoustician who tunes the hall sits). That way, I get the full dynamic
power of the orchestra from (pp to fff), the inner detail and the different
sections are pretty well integrated. At different times, I have had seats just
about everywhere in the hall and in different concert venues. So when I say
"believable", I mean does a string section or oboe, for example, sound that way
from any of those seats in real life, or is the equipment changing the timbral
relationships, dynamic contrasts, tonal balance, etc.

In that context I have a number of 'reference' recordings that are well
recorded, music I enjoy, and that I am very familiar with to use for evaluating
components. But there is no substitute for attending a live performance of
unamplified music to 'recalibrate' my reference sound memory.
Regards,
Mike



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S888Wheel
 
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Default science vs vs pseudo science

I said


OtOH if the purpose of speakers is to listen to them and enjoy the music they
reproduce there is no substitute for listening to them to determine which

will
do the best job for that purpose.


Howard said


While we all want speakers to entertain us,

I think it is a mistake to make any such global presumptions.

Howard said

the idea of "high-fidelity
sound reproduction" is to have the components involved be a sonically
transparent as possible

That is one idea of high fidelity. There are other ideas of high fidelity. The
validity of which ideas are more valid are in the eye or in this case ear of
the beholder. "High fidelity" cannot exist in a vacuum. The question must be
fidelity to what? To the recording? To the sound of live music? To what? How
do you judge fidelity to a recording? a recording doesn't exist without
playback equipment. Are we then cornered into using playbeack equipment as a
reference for fidelity?
Then we must come to grips with the fact that absolute fidelity to an
original live performance isn't possible with today's technology. So that means
there will be comprimises. The choice of comprimises and the choice of source
to measure fidelity are subjective choices based on what each of us wants from
our playback. Then we have to consider the different approaches to reaching
higher fidelity as we have decided to measure it. Some people are quite happy
to match colorations with counter colorations while some, as you have
suggested, seek maximum trnasparency with each component. The true measure of
success is found in the final listening experience. There is no getting around
that. measurements are there to serve the listening experience and not visa
versa. At least it is that way for me. If you tell me that another system
measures better than mine and it doesn't sound as good to me I am not going to
adjust my preferences to match the measurements.

Howard said

That way, the recording entertains us in the
least sonically offensive way possible and best reveals just what it
is that we have on the recording.

You have your way and I have my way. Your way is not "the right" way it is your
way. What you may think is the best revelation of what is on a recording may
not coincide with what I think is the best revelation of what is on a
recording. One cannot talk about what is on a recording without playback. You
are then stuck with playback equipment as a reference. I prefer the sound of
live music provided it is in a good acoustic envirement to the sound of any
playback of live music. So that is my reference and my goal. The problem is I
cannot compare a recording of live music to live music. I have no idea what the
absolute shortcommings are of any given recording of live music. So this leads
to the possibility that colorations in other components may compensate for
inherent colorations in recordings. There is no question that many components
that are claimed to be less transparent and more colored by many on RAHE lead
to a better illusion of live music in playback for my ears. So, your premises
do not seem to work for my preferences and my choice of reference for fidelity
for my ears. You have your way and I have my way. So if the components that
create a better illusion of live music for me really are more colored and less
transparent by measurement then your way simply does nto provide the best
result for my ears and sensibilities.

Howard said

That is a reference standard,

That is your choice for a reference standard. As I have already pointed out. If
you use recordings as a reference standard you are stuck with the playback
equipment needed to hear that recording as a reference satndard as well. My
choice of reference, as already stated for reasons already stated, is live
music in a good acoustic envirement. I am quite happy with my choice of
reference standard.

Howard said

and if
we dump that concept then basically we are saying that taste rules and
that the whole concept of hi-fi sound reproduction is a pointless.

One does not have to dump the idea of having a reference standard to come to
grips with the fact that not all people agree with your choice for a reference
standard. I think recordings as reference standard is inherently problamatic.
You can't hear a recording without playback. It is a catch 22.

Howard said

There has to be some sort of reference standard for what this hobby
stands for,

Nonsense. There does not have to be any single reference standard. that is just
tyrany imposed on a hobby.

Howard said

and to say that it rotates about taste and preference and
only taste and preference shoots the whole enterprise in the head

Well. ultimately it does. the alternative is to tell customers that what they
want is irrelevant they must take what a group of other people have deemed
better for them instead. The freedom to choose has not hurt the industry. What
you seemt o be proposing, I believe, would.

Howard said


One may prefer a given set of speakers, because they suit one's taste.

And as long as we have a free market that will continue to be the case.

Howard said

Perhaps they like C&W music and like the kind of sound that a standard
juke box delivers. Or perhaps they hang out at discos and like their
speakers at home to deliver the same kind of overall bass-thumping
impact. Or perhaps they like the midrange frequencies somewhat
withdrawn in level, in order to have a mellow sounding recording that
still has sparkle in the top octave. Or
perhaps they like the kind of
tubby bass you get with woofer systems that have ample even-order
harmonic distortion. Or perhaps they do not like systems that go deep
into the bass range, because then they cannot hear the midrange with
the forward clarity they prefer.



There are all sorts of preferences out there, but I cannot see how we
can have a hobby that professes to be involved with the accurate
reproduction of sound if we do not at least set standards for low
distortion,
flat response, and decent bandwidth with every component
in the chain. Note that these parameters do not fully take into
account dispersion and first-arrival phase characteristics with
speakers,

Fortunenatly for those of us that find your way to higher fidelity less
satisfying we are not stuck with your vision of high fidelity. why you would
want to deprive those of us with different sensibilities of our choice in the
name of some cause in a hobby is beyond me.

Howard said

and this is fine. I think that when it comes to such things
taste can play a part, simply because different environments and
different recordings respond differently to speakers with differing
dispersion patterns, particularly as it relates to the strength of the
first-arrival signals and the stability of the "critical distance"
between the direct and reverberant fields. I have heard excellent
examples of both types (including two different and fine Dunlavy
models that I have reviewed in The Sensible Sound), and have no
problem when it comes to taste and disperion in speakers. However,
this does not mean that measurements do not count.

For me they count as far as they can corolate to my listening experience. OTOH
I will not adjust my preferences to measuements that are alleged to show higher
fidelity. As I said to begin with, the final arbitrator of quality is the
listening experience. I will not endure playback quality that is less appealing
just because someone tells me the numbers say it should be better.

Howard said

Rather, it tells us
that measurements inform us about just what a speaker is doing in
terms of the more important performance parameters.

I am all for designers trying to corolate measurements with performance but
ultimately ideal performance is subjective.

Howard said



I continue to be amazed that some so-called hi-fi enthusiasts appear
to like components that have verifiable distortion characteristics,
admit that they like distorted components (see the above comments
about how certain speakers may sound, and of course remember what we
can get from certain kinds of amplifiers), and pay good money for the
pleasure.

Do you not like the playback you have at your home? If you answer yes than you
have just admitted to liking playback with varifiable distortion
characteristics. if someone could arange to bring Miles Davis and his band back
to life and have them play Kind of Blue in the studio just for me at my
convenience and on my budget that would be great. it aint gonna happen. We are
stuck with playback and all it's colorations if we want to hear the vast
majority of our favorite music. I judge the quality of playback with my ears,
period. It is with my ears and my sensibilities that I connect with the music.
as said before, those sensibilities will not be dictataed by what you or others
say they ought to be based on some measurements.

Howard said


Taste, preference, and pleasure are all well and good, but it is a
good idea to remember that the bottom line is the ability to cleanly
and accurately reproduce the input signals and leave the modifications
to the recording engineer at his end.


You have your bottom line and I have mine. It seems you cannot find peace with
the existance of different bottom lines.

  #13   Report Post  
Nousaine
 
Posts: n/a
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(S888Wheel) wrote:

....snips to content.....

you use recordings as a reference standard you are stuck with the playback
equipment needed to hear that recording as a reference satndard as well. My
choice of reference, as already stated for reasons already stated, is live
music in a good acoustic envirement. I am quite happy with my choice of
reference standard.


So you are implying that a studio recording isn't "live" music? While I don't
disagree with you in principle I hasten to add that NO recording is "live." I'm
all for the idea of being "taken" to the concert venue but that doesn't mean
that suspension of disbelief MUST be a function acquired at the original event.

The filmsound people have much to offer us in this regard. They generally don't
"capture" sound on the set. Yet, some of the most realistic recordings I've
heard rely largely on foley and other sound effects. Thet seem to know that it
doesn't have to BE real, it only has to seem that way.

As for pure reference; few of us have a recording of an acoustical music event
where the recording was made while we were there. I am lucky enough to have a
few of these and generally speaking they don't necesarily sound any more
enjoyable or more "realistic" than the same material with the same artists made
in a studio.

So what's the reference? Everybody says "live acoustical music" but how many
have a recording of live music where they attended the event? The real
"reference" is the "imagination" I have of how "live music" should sound.

There's nothing really wrong with that but I think we should all look intensely
into the mirror when we talk "reference."

This is one reason I like environmental recordings as a reference.
Thunderstorms, birds, loons on a lake, streams, oceans and tides are things
that real people have heard in "live" circumstance.

...snips.....


Howard said

and to say that it rotates about taste and preference and
only taste and preference shoots the whole enterprise in the head

Well. ultimately it does. the alternative is to tell customers that what they
want is irrelevant they must take what a group of other people have deemed
better for them instead. The freedom to choose has not hurt the industry.
What
you seemt o be proposing, I believe, would.


The freedom to choose is one of the reasons Bose is so sucessful. They know
that size and appearance is more important than sound quality to most customers
so they arrange their engineering to coincide with what people really want.

And,in some cases, the Wave Radio, they bring sound enjoyment to a class of
customers who could really use a modern boom-box but wouldn't be caught dead
with one.


Howard said


One may prefer a given set of speakers, because they suit one's taste.

And as long as we have a free market that will continue to be the case.


And Bose will continue to thrive. As may the folks that brought you "high-end"
cables.

....snip remainder.....

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S888Wheel
 
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I said


you use recordings as a reference standard you are stuck with the playback
equipment needed to hear that recording as a reference satndard as well. My
choice of reference, as already stated for reasons already stated, is live
music in a good acoustic envirement. I am quite happy with my choice of
reference standard.


Tom said


So you are implying that a studio recording isn't "live" music? While I don't
disagree with you in principle I hasten to add that NO recording is "live."


I'm not sure what you are adding. I didn't say "studio recordings" I said
"recordings" which already includes recordings of live music at a live venue.

Tom said

I'm
all for the idea of being "taken" to the concert venue but that doesn't mean
that suspension of disbelief MUST be a function acquired at the original
event.


What do you mean function?

Tom said


The filmsound people have much to offer us in this regard. They generally
don't
"capture" sound on the set. Yet, some of the most realistic recordings I've
heard rely largely on foley and other sound effects. Thet seem to know that
it
doesn't have to BE real, it only has to seem that way.


Of course. Film is a stylized art form. No one ever experiences the suspension
of disbelief while watching a film. One always knows it is a film.That opens up
all kinds of accepted conventions in film making that make for better story
telling which also remind one that what they are watching and hearing is a film
and not real life. You are comparing apples to oranges here. When some of us
listen to a recording of live music some of us do want that experience to
suspend disbelief as much as possible. One could say that some studio
recordings, say Pink Floyd's Dark Side of the Moon is the equivilent of film.
We may like what we hear but there is no concert hall for this stylized
recording to take us back to.

Tom said


As for pure reference; few of us have a recording of an acoustical music
event
where the recording was made while we were there. I am lucky enough to have a
few of these and generally speaking they don't necesarily sound any more
enjoyable or more "realistic" than the same material with the same artists
made
in a studio.


That is true and it doesn't solve the problem even if one has been to the live
sessions. Once recorded one has the recording not the live event. They are not
the same and the recording always relies on playback equipment to be heard. So
recordings cannot be seen as pefect references at all if one seeks the sound of
live music in playback.

Tom said


So what's the reference?


IMO it is what one chooses to use as a reference.

Tom said

Everybody says "live acoustical music" but how many
have a recording of live music where they attended the event?


That isn't what everybody says. I say it is my general memory of what live
music in a good acoustic venue generally sounds like. The differences between
that general experience and playback are big enough that even such a broad
reference gives direction to my goals for playback and for source material.

Tom said

The real
"reference" is the "imagination" I have of how "live music" should sound.


Call it imagination if you like. I call it experience and memory. I think there
is a substantial difference.

Tom said


There's nothing really wrong with that but I think we should all look
intensely
into the mirror when we talk "reference."


Fair enough.

Tom said


This is one reason I like environmental recordings as a reference.
Thunderstorms, birds, loons on a lake, streams, oceans and tides are things
that real people have heard in "live" circumstance.


Some of us have spent a fair amount of time in front of live musicians as well.

Howard said

and to say that it rotates about taste and preference and
only taste and preference shoots the whole enterprise in the head

Well. ultimately it does. the alternative is to tell customers that what

they
want is irrelevant they must take what a group of other people have deemed
better for them instead. The freedom to choose has not hurt the industry.
What
you seemt o be proposing, I believe, would.



Tom said


The freedom to choose is one of the reasons Bose is so sucessful. They know
that size and appearance is more important than sound quality to most
customers
so they arrange their engineering to coincide with what people really want.


I don't see how freedom of choice per se gives Bose an edge over any other
company but I do see their focus on making their products as unintrusive as
possible was one of a number of good choices they made from a marketing stand
point. But I don't see the relevence of Bose to this issue. We were talking
about the freedom to choose one's reference for the evaluation of system
playback.

Tom said


And,in some cases, the Wave Radio, they bring sound enjoyment to a class of
customers who could really use a modern boom-box but wouldn't be caught dead
with one.


I still don't see what this has to do with the topic.



Howard said


One may prefer a given set of speakers, because they suit one's taste.


I said


And as long as we have a free market that will continue to be the case.



Tom said


And Bose will continue to thrive. As may the folks that brought you
"high-end"
cables.


But you claim that all cables sound the same unless they are broken. Are you
claiming that Bose products sound the same as their competion? It looks like a
flawed attempt at guilt by assoiation. Why are you introducing more irrelevent
subject matter? There was no mention of cables until you brought it up.

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Bruce Abrams
 
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"S888Wheel" wrote in message
news:7FSmb.36307$HS4.128508@attbi_s01...
*snip*
Everybody says "live acoustical music" but how many
have a recording of live music where they attended the event?


That isn't what everybody says. I say it is my general memory of what live
music in a good acoustic venue generally sounds like. The differences

between
that general experience and playback are big enough that even such a broad
reference gives direction to my goals for playback and for source

material.


The problem here, of course, is that the "general memory of what live music
in a good acoustic venue generally sounds like" just isn't a viable
reference. As a member of a performing choir, I've heard my choir live in
Avery Fisher, Alice Tully, Carnegie, Merkin, Weil Recital and many other
halls. While the choir is remarkable consistent in its sound, we sound very
different depending on the venue. This should suprise no one, given the
dramatic difference in acoustic space between the venues.

The question is, therefore, how can we base our audio system reference on
such a variable? The answer is, we can't. If I know what a Steinway D
sounds like in Weil Recital Hall, and I hear a recording of said, I have a
reference. OTOH, if I hear a recording of the same piano in Alice Tully, I
no longer have a reference against which to compare. A number of years ago,
I was listening to a recording of Midori playing the Dvorak Viloin Concerto.
As I was listening, I said out loud to my wife, that the recording sounded
just like Avery Fisher Hall down to the smear in the mid-band (that was very
obvious before the last acoustic adjustment.) Looking at the CD, it was, in
fact, recorded live at Avery Fisher in 1989. That's a reference.



  #16   Report Post  
S888Wheel
 
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Tom said


Everybody says "live acoustical music" but how many
have a recording of live music where they attended the event?



I said


That isn't what everybody says. I say it is my general memory of what live
music in a good acoustic venue generally sounds like. The differences

between
that general experience and playback are big enough that even such a broad
reference gives direction to my goals for playback and for source

material.


Bruce said


The problem here, of course, is that the "general memory of what live music
in a good acoustic venue generally sounds like" just isn't a viable
reference.


I disagree. As different as it is from venue to venue there are certain
desirable qualities that are universally consistant.

Bruce said

As a member of a performing choir, I've heard my choir live in
Avery Fisher, Alice Tully, Carnegie, Merkin, Weil Recital and many other
halls. While the choir is remarkable consistent in its sound, we sound very
different depending on the venue.


I bet those differences, as large as they may be, are trivial compared to what
you hear with playback of chior music compared to the live sound in any of
those venues.

Bruce said

This should suprise no one, given the
dramatic difference in acoustic space between the venues.


Of course it doesn't.

Bruce said


The question is, therefore, how can we base our audio system reference on
such a variable?


Start with a wide range of recordings of live music from different venues.

Bruce said

The answer is, we can't.


Maybe you can't. i have no problem. the differences are big enough between live
music in general and playback that it is easy to note what is wrong with
playback generally speaking.

Bruce said

If I know what a Steinway D
sounds like in Weil Recital Hall, and I hear a recording of said, I have a
reference. OTOH, if I hear a recording of the same piano in Alice Tully, I
no longer have a reference against which to compare.


Sure you do. You still have the sound of the Steinway. I mean come on, if
someone you know talks to you in a room you have never been in do you no longer
recognize the voice?

Bruce said

A number of years ago,
I was listening to a recording of Midori playing the Dvorak Viloin Concerto.
As I was listening, I said out loud to my wife, that the recording sounded
just like Avery Fisher Hall down to the smear in the mid-band (that was very
obvious before the last acoustic adjustment.) Looking at the CD, it was, in
fact, recorded live at Avery Fisher in 1989. That's a reference.


So what are you saying? That if one hasn't been in the specific hall they have
no idea what an orchestra would sound like at all in that hall? Familiarity
certainly helps. I would not expect someone to use recordings of a specific
instrument that they have never heard in person as a reference. I think it is
fair to say that people with little experience listening to live music will
have trouble using that limmited experience as a reference. But, there are
certain elements of orchestral sound that are reliable from hall to hall that
can make orchestral music from an unfamiliar hall useful as a reference. I do
think it is important though to use many different sources for evaluation.

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Bruce Abrams
 
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"S888Wheel" wrote in message
news:08cnb.32349$9E1.121748@attbi_s52...
*snip*

A number of years ago,
I was listening to a recording of Midori playing the Dvorak Viloin

Concerto.
As I was listening, I said out loud to my wife, that the recording

sounded
just like Avery Fisher Hall down to the smear in the mid-band (that was

very
obvious before the last acoustic adjustment.) Looking at the CD, it was,

in
fact, recorded live at Avery Fisher in 1989. That's a reference.


So what are you saying? That if one hasn't been in the specific hall they

have
no idea what an orchestra would sound like at all in that hall?


I didn't say that they'd have no idea. What I am saying is that if we're
talking about establishing a reference, the reference has to be exactly
that, a known reference. If I'd never heard an orchestral performance at
Avery Fisher, how would I have known that the mid-band smear present on the
recording wasn't something endemic to the hall and that I shouldn't try to
correct it out of my system? You seem to have broadened the reference of
"acoustic music played in an acoustic space", to simply acoustic music (as
you've eliminated the venue from the equation), and taken from this
standpoint, there should be no difference whether the music was recorded
with a full house at Carnegie, or recorded and engineered in a studio.

Familiarity certainly helps.


Actually, I believe that familiarity doesn't merely help, but that without
it you simply can't have a reference. You can have an idea, but a reference
is a known quantity, not an idea.

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S888Wheel
 
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Bruce said

I was listening to a recording of Midori playing the Dvorak Viloin

Concerto.
As I was listening, I said out loud to my wife, that the recording

sounded
just like Avery Fisher Hall down to the smear in the mid-band (that was

very
obvious before the last acoustic adjustment.) Looking at the CD, it was,

in
fact, recorded live at Avery Fisher in 1989. That's a reference.



I said


So what are you saying? That if one hasn't been in the specific hall they

have
no idea what an orchestra would sound like at all in that hall?



Bruce said

I didn't say that they'd have no idea. What I am saying is that if we're
talking about establishing a reference, the reference has to be exactly
that, a known reference.


Such exactness is not possible. Microphone placement alone makes such exactness
impossible for orchetral recordings.

Bruce said

If I'd never heard an orchestral performance at
Avery Fisher, how would I have known that the mid-band smear present on the
recording wasn't something endemic to the hall and that I shouldn't try to
correct it out of my system?


That's easy. You simply have to use a wide enough range of source material to
distinguish what is characteristic of the venue, what is characteristic of the
recording engineer and what is characteristic of the mastering. Yeah, if you
use one recording for your source and don't know anything about it you are
bound to make that kind of mistake. OTOH if you are hearing a mid-band smear on
all your recordings you can probably deduct that it is the equipment and not
all the recordings. Heck even if it is all the recordings you still want to fix
the effect if you hear it with everything you play.

Bruce said

You seem to have broadened the reference of
"acoustic music played in an acoustic space", to simply acoustic music (as
you've eliminated the venue from the equation),


Not at all. I simply think that if you use enough source material and pay
attention to what that source material is (where it was recorded, who recorded
it and who mastered it and when) then you can eventually figure out what is
unique to the source and what is not. That includes the specific sound of a
venue.

Bruce said

and taken from this
standpoint, there should be no difference whether the music was recorded
with a full house at Carnegie, or recorded and engineered in a studio.


There are other differences as well that one will never be able to reference
via experience. it does not change what I want to hear out of my playback.

I said


Familiarity certainly helps


Bruce said


Actually, I believe that familiarity doesn't merely help, but that without
it you simply can't have a reference. You can have an idea, but a reference
is a known quantity, not an idea.


Given the fact that you aren't going to hear a live performance from the
perspective of the microphones ( impossible in most cases) under recording
conditions it follows that "you" will never have a reference by the parameters
you have proposed.

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Nousaine
 
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(S888Wheel) wrote:


Bruce said

I was listening to a recording of Midori playing the Dvorak Viloin

Concerto.
As I was listening, I said out loud to my wife, that the recording

sounded
just like Avery Fisher Hall down to the smear in the mid-band (that was

very
obvious before the last acoustic adjustment.) Looking at the CD, it was,

in
fact, recorded live at Avery Fisher in 1989. That's a reference.


I said


So what are you saying? That if one hasn't been in the specific hall they

have
no idea what an orchestra would sound like at all in that hall?



Bruce said

I didn't say that they'd have no idea. What I am saying is that if we're
talking about establishing a reference, the reference has to be exactly
that, a known reference.


Such exactness is not possible. Microphone placement alone makes such
exactness
impossible for orchetral recordings.

Bruce said

If I'd never heard an orchestral performance at
Avery Fisher, how would I have known that the mid-band smear present on the
recording wasn't something endemic to the hall and that I shouldn't try to
correct it out of my system?


That's easy. You simply have to use a wide enough range of source material to
distinguish what is characteristic of the venue, what is characteristic of
the
recording engineer and what is characteristic of the mastering. Yeah, if you
use one recording for your source and don't know anything about it you are
bound to make that kind of mistake. OTOH if you are hearing a mid-band smear
on
all your recordings you can probably deduct that it is the equipment and not
all the recordings. Heck even if it is all the recordings you still want to
fix
the effect if you hear it with everything you play.

Bruce said

You seem to have broadened the reference of
"acoustic music played in an acoustic space", to simply acoustic music (as
you've eliminated the venue from the equation),


Not at all. I simply think that if you use enough source material and pay
attention to what that source material is (where it was recorded, who
recorded
it and who mastered it and when) then you can eventually figure out what is
unique to the source and what is not. That includes the specific sound of a
venue.

Bruce said

and taken from this
standpoint, there should be no difference whether the music was recorded
with a full house at Carnegie, or recorded and engineered in a studio.


There are other differences as well that one will never be able to reference
via experience. it does not change what I want to hear out of my playback.

I said


Familiarity certainly helps


Bruce said


Actually, I believe that familiarity doesn't merely help, but that without
it you simply can't have a reference. You can have an idea, but a reference
is a known quantity, not an idea.


Given the fact that you aren't going to hear a live performance from the
perspective of the microphones ( impossible in most cases) under recording
conditions it follows that "you" will never have a reference by the
parameters
you have proposed.


Which goes back to the original point tha concept of "live acoustic music" is
far too vague to be a specific reference. But, also we don't need to know the
perspctive of the microphone UNLESS we are evaluating tyhe microphone.

My original point was that few folks arguing the point actually even have a
specific reference such as postulated by Mr Abrams. Few have even been at a
live performance of which they have a recording, of any quality of any kind.

Most of those that do are recording engineers or muscians as in Mr Abrams case.
Few are 'audiophiles'.

OTOH I have such recordings. I have an associate, with whom I've evalauted
several hundred audio systems over the past 5 years, who regularly records a
symphony orchestra and has 25 years of on-location acoustical jazz experience.
His kind of reference (on-location; awareness of how the microphone
position/individual microphone characteristics/recording idioscyncrocies are
invaluable listening aids).

But the original point is that a general statement of "live acoustic music" is
vague. A good idea ... not a true reference.

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S888Wheel
 
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I said


Given the fact that you aren't going to hear a live performance from the
perspective of the microphones ( impossible in most cases) under recording
conditions it follows that "you" will never have a reference by the
parameters
you have proposed.


Tom said


Which goes back to the original point tha concept of "live acoustic music" is
far too vague to be a specific reference.


I never proposed that it is a "specific" reference. Of course it is a general
reference for those of us that use it as a reference. It is sufficiently
different enough and superior enough to all playback that it works fine as a
general reference for some of us.

Tom said

But, also we don't need to know the
perspctive of the microphone UNLESS we are evaluating tyhe microphone.


You sure do. If you are looking to use a specific recording as a "known
reference" you must know the sound from the perspective of the microphones. The
sound of a hall and the sound of a recording in a hall will vary widely
depending on listener position and microphone position.

Tom said


My original point was that few folks arguing the point actually even have a
specific reference such as postulated by Mr Abrams. Few have even been at a
live performance of which they have a recording, of any quality of any kind.


Many of us who use the sound of live music as the ideal for the sound of
playback already know this. It does not change our aesthetic values.

Tom said


Most of those that do are recording engineers or muscians as in Mr Abrams
case.
Few are 'audiophiles'.


So?

Tom said


But the original point is that a general statement of "live acoustic music"
is
vague. A good idea ... not a true reference.


Well I guess I should sell everything and start over. Tom doesn't believe my
choice of reference is a "true reference." IMO you are wrong. Some people
don't need exactness to use a genereal reference to give one a general
direction.



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chris
 
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"S888Wheel" wrote in message
news:Z_wnb.51241$HS4.234088@attbi_s01...
I said


Given the fact that you aren't going to hear a live performance from the
perspective of the microphones ( impossible in most cases) under

recording
conditions it follows that "you" will never have a reference by the
parameters
you have proposed.


Tom said


Which goes back to the original point tha concept of "live acoustic

music" is
far too vague to be a specific reference.


I never proposed that it is a "specific" reference. Of course it is a

general
reference for those of us that use it as a reference. It is sufficiently
different enough and superior enough to all playback that it works fine as

a
general reference for some of us.

Tom said

But, also we don't need to know the
perspctive of the microphone UNLESS we are evaluating tyhe microphone.


You sure do. If you are looking to use a specific recording as a "known
reference" you must know the sound from the perspective of the

microphones. The
sound of a hall and the sound of a recording in a hall will vary widely
depending on listener position and microphone position.

Tom said


My original point was that few folks arguing the point actually even have

a
specific reference such as postulated by Mr Abrams. Few have even been at

a
live performance of which they have a recording, of any quality of any

kind.


Many of us who use the sound of live music as the ideal for the sound of
playback already know this. It does not change our aesthetic values.

Tom said


Most of those that do are recording engineers or muscians as in Mr Abrams
case.
Few are 'audiophiles'.


So?

Tom said


But the original point is that a general statement of "live acoustic

music"
is
vague. A good idea ... not a true reference.


Well I guess I should sell everything and start over. Tom doesn't believe

my
choice of reference is a "true reference." IMO you are wrong. Some people
don't need exactness to use a genereal reference to give one a general
direction.

But wheelie at the end of the day the position of the mic that recored the
sound is not the same postions as the audiance heard the sound and a mic is
not the same as a human ear by a long chalk.
but the relitive postions of all are esentail in being able to re-create
something close to the orginally intended sound (god how i hate the phrase
absolute sound).
we all persue the recreation of illusions.
so tom is wrong ! and you is right!!

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Default science vs vs pseudo science

"chris" wrote:


"S888Wheel" wrote in message
news:Z_wnb.51241$HS4.234088@attbi_s01...
I said


Given the fact that you aren't going to hear a live performance from the
perspective of the microphones ( impossible in most cases) under

recording
conditions it follows that "you" will never have a reference by the
parameters
you have proposed.


Tom said


Which goes back to the original point tha concept of "live acoustic

music" is
far too vague to be a specific reference.


I never proposed that it is a "specific" reference. Of course it is a

general
reference for those of us that use it as a reference. It is sufficiently
different enough and superior enough to all playback that it works fine as

a
general reference for some of us.

Tom said

But, also we don't need to know the
perspctive of the microphone UNLESS we are evaluating tyhe microphone.


You sure do. If you are looking to use a specific recording as a "known
reference" you must know the sound from the perspective of the

microphones. The
sound of a hall and the sound of a recording in a hall will vary widely
depending on listener position and microphone position.

Tom said


My original point was that few folks arguing the point actually even have

a
specific reference such as postulated by Mr Abrams. Few have even been at

a
live performance of which they have a recording, of any quality of any

kind.


Many of us who use the sound of live music as the ideal for the sound of
playback already know this. It does not change our aesthetic values.

Tom said


Most of those that do are recording engineers or muscians as in Mr Abrams
case.
Few are 'audiophiles'.


So?

Tom said


But the original point is that a general statement of "live acoustic

music"
is
vague. A good idea ... not a true reference.


Well I guess I should sell everything and start over. Tom doesn't believe

my
choice of reference is a "true reference." IMO you are wrong. Some people
don't need exactness to use a genereal reference to give one a general
direction.

But wheelie at the end of the day the position of the mic that recored the
sound is not the same postions as the audiance heard the sound and a mic is
not the same as a human ear by a long chalk.
but the relitive postions of all are esentail in being able to re-create
something close to the orginally intended sound (god how i hate the phrase
absolute sound).
we all persue the recreation of illusions.
so tom is wrong ! and you is right!!


I kind of see your point. But I don't need to know anything about the
production to know if the playback simulates my 'live' experience. In Orchestra
Hall all the main microphones "fly" in a place nowhere near where anyone sits.
So the listener can never "know" the perspective of the microphones.

On the other hand, I have a friend who bootlegs rock concerts (not "live"?)
with mics in his eye glasses. Perhaps he knows the microphone perspective.

Also I have a 2-channel DAT/ORTF recording taken with the mic stand immediately
adjacent to my seat from the 1st row (Peter Appleyard; Elkhart Jazz Festival)
which gives me a decent take on that mic perspective. But even that doesn't
help me with Orchestra Hall in the mic perspective aspect.

But my point is more general than that. Everybody considers "live acoustical
music" as a hypothetical reference but few actually even have a recording of
any performance which they attended.

So the cry "live acoustical music" IS a great idea but it's more of a construct
than a real reference. It lacks the specificity and calibration-ability of, say
the reference system we use for evaluating autosound systems --- a specific
2-channel system in a normally reverberant moderate sized listening room --
where listeners calibrate themselves and then score the autosound system
numerically in several dozen orthogonal sonic performance categories using 63
selected program segments designed to tax an audi system capability. (We're
developing the multichannel reference as we speak.)

THAT's a specific reference and not a 'construct' as live-acoustical-music must
be. Also out program segments include live-acoustic material both music and
spoken voice plus other commercially available selections that are more taxing
dynamically than any live musical program, including Japanese drum.

Of course, that kind of reference is impractical or impossible to supply for
the reference system itself which must rely on the "construct", for which
live-music is a good 'idea' but not a true reference for enthusiasts, in that
none of them (with a few exceptions) has ever "heard" the reference sound in
the venue in which it was recorded. And even then, those that have, have only
done it once and that may have been a long time ago.

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