Do it yourself Room Lenses

[Greg Weaver]

Check it out. This just went up at On Sound and Music.

http://www.onsoundandmusic.com/issues/0403/0403-diy.html

On Sound and Music.com
A Journal of Pro and High-End Audio,
Music, and other things that Matter.

[Ethan Winer]

Do it yourself Room LensesThat's a joke, right?

[Chris Whealy]

Is this guy serious??? He sounds like a complete fruit-cake to me.

I do acoustics only as a hobby, but I can tell immediately that this guy
doesn't have a clue about the performance of Helmholtz resonators, how
to build them, or why they are needed in the first place.

He talks about doing "some quick calculations", but he doesn't say what
those calculations are. There is no information on the modal behaviour
of the room, consequently, how on earth does he know what
eigenfrequencies need attention? He hasn't determined the positions of
modal maxima within the room, instead, he just says "Initial placement
is simple. Place one unit to the outside of each speaker directly off
the outside front corner at about a 45 degree angle and about 6" to a
foot away."

Besides this, small listening spaces are treated far more efficiently
with broad band low frequency absorbers. Leave Helmholtz resonators for
much larger rooms with distinct, narrow bandwidth eigenfrequencies.

I suppose this guy is like Adolf Loos, the Viennese architect who stated
in 1912 that "The music of our symphony orchestras ... impregnate the
building materials, causing mysterious changes in the molecular
structure..."

See
http://www.acoustics.salford.ac.uk/acoustics_world/concert_hall_acoustics/answer1.html
for more info.

What a quack!

Chris

--
The voice of ignorance speaks loud and long,
but the words of the wise are quiet and few.
--

[Roger W. Norman]

This is why women don't like men who are audiophiles. A) they don't like
cables all over the place, B) they don't like speakers all over the place,
and C) they can hear better than men and generally don't like the volume at
which men play music. So my guess is that this guy has his room, but I'll
bet there's only one chair.

--


Roger W. Norman
SirMusic Studio

"Greg Weaver" > wrote in message
...
> Check it out. This just went up at On Sound and Music.
>
> http://www.onsoundandmusic.com/issues/0403/0403-diy.html
>
> On Sound and Music.com
> A Journal of Pro and High-End Audio,
> Music, and other things that Matter.
>
>
>

[hank alrich]

"Ethan Winer" wrote:

> Do it yourself Room LensesThat's a joke, right?

I use Dr. Dean Adell's for nine bucks; they work great. Sometimes you
gotta heat the frames with a shrinkwrap gun to soften the plastic and
align 'em a little, but what the hey, the lenses are okay.

Some folks prefer the ones from Altek Lensing.

--
ha

[Ethan Winer]

Hank,

Dr. Dean is my hero!

--Ethan

[Ethan Winer]

Chris,

> Is this guy serious??? He sounds like a complete fruit-cake to me. <

That link was to the DIY version, which is a clone of the $1000 commercial
version:

http://www.roomlens.com/RoomLens.html

Check this site too:

http://www.audioasylum.com/audio/tweaks/bbs.html

There's a discussion going on now about using a bulk tape demagnetizer on
your CDs to improve their sound. And much more just like that.

(The Audio Asylum site seems to be down right this moment. I'm sure it will
be back soon. It's a pretty active place.)

--Ethan

[hank alrich]

"Ethan Winer" wrote:

> Check this site too:

> http://www.audioasylum.com/audio/tweaks/bbs.html

> There's a discussion going on now about using a bulk tape demagnetizer on
> your CDs to improve their sound. And much more just like that.

"That ol' green magic has me under it's spell..."

--
ha

[Geoff Wood]

hank alrich wrote:
> "Ethan Winer" wrote:
>
>> Check this site too:
>
>> http://www.audioasylum.com/audio/tweaks/bbs.html
>
>> There's a discussion going on now about using a bulk tape
>> demagnetizer on your CDs to improve their sound. And much more just
>> like that.
>
> "That ol' green magic has me under it's spell..."\

Looks like a set of cricket wickets for blind people, to me. Maybe is a
great audio enhancement for deaf people...


geoff

[Ricky W. Hunt]

"Ethan Winer" <ethanw at ethanwiner dot com> wrote in message
...
> Do it yourself Room LensesThat's a joke, right?
>

One thing I've found true...if somebody BELIEVES something to work no amount
of proof will convince them otherwise.

[Ethan Winer]

Ricky,

> if somebody BELIEVES something to work no amount of proof will convince
them otherwise. <

Ain't that the truth! Even some very well respected audio engineers fall for
audiphoole nonsense.

--Ethan

[Ethan Winer]

Hank,

Here's another gem:

http://www.shakti-innovations.com/hallograph.htm

Guaranteed to make everything sound W O N D E R F U L!

For a good laugh check out some of the other stuff on their site too.

--Ethan

[Geoff Wood]

Ethan Winer wrote:
> Hank,
>
> Here's another gem:
>
> http://www.shakti-innovations.com/hallograph.htm
>
> Guaranteed to make everything sound W O N D E R F U L!
>
> For a good laugh check out some of the other stuff on their site too.


A simpe inexpensive spliff will make everything sound wonderful too. Even
if it isn't.

geoff

[Mark Tranchant]

Ethan Winer wrote:

> Hank,
>
> Here's another gem:
>
> http://www.shakti-innovations.com/hallograph.htm

Why is it that exotic hardwoods always "work better" than common stuff like
pine?

There's people starving, and others buying Shakti stones to put on their
DACs. Stop the world, I want to get off...

--
Mark.
http://tranchant.plus.com/