Re: [LAU] Pro Audio? OT rant.

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To: Tim E. Real <termtech@...>
Cc: LAU <linux-audio-user@...>
Date: Tuesday, January 1, 2013 - 5:23 pm

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On Mon, Dec 31, 2012 at 5:44 PM, Tim E. Real wrote:

> Just an offside comment and question:

turn up the rest of the audio system.

The way our ears work, what frequency we actually hear shifts slightly with
intensity. There is a great book on acoustics by F. Alton Everest that
goes into this a bit in one of the earlier chapters. I am still reading
through all of it, but it is an interesting phenomenon. Pitch is in
actuality a subjective form of Frequency, not objective, and this is
reflected in this phenomenon.

> The level of sound affects the perception of pitch. For low frequencies,
the pitch goes down as the level of sound is increased. At high
frequencies, the reverse takes place=97the pitch increases with sound level=
.

> Everest, F. Alton (2000-09-22). Master Handbook of Acoustics (Kindle
Locations 1553-1555). McGraw-Hill. Kindle Edition.

There is a nice experiment involving two oscillators they use to
demonstrate this. The book is well worth the money if you can get it and
read English natively(Not sure what translations exist or how good they
are). I am still working my way through it but it will likely take me two
or three times through before I fully understand most of it.

Seablade

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On Mon, Dec 31, 2012 at 5:44 PM, Tim E. Real <termtech@rogers.com> wrote:

Just an offside comment and question:

I've repaired a lot of subwoofers.
After repair we had to let them run by themselves with audio.

I noticed a very strange phenomenon with all of them.

When you listen to a subwoofer all by itself, the music which
=A0comes out of it seems to be noticeably off-key, until you=A0=A0turn up the rest of t=
he audio system.

The way our ears work, what frequency we act=
ually hear shifts=20
slightly with intensity.=A0 There is a great book on acoustics by F. Alton
Everest that goes into this a bit in one of the earlier chapters.=A0 I am
still reading through all of it, but it is an interesting phenomenon.=A0=
=20
Pitch is in actuality a subjective form of Frequency, not objective, and
this is reflected in this phenomenon.> The level=20
of sound affects the perception of pitch. For low frequencies, the pitch
goes down as the level of sound is increased. At high frequencies, the=20
reverse takes place=97the pitch increases with sound level.> Eve=
rest, F. Alton (2000-09-22). Master Handbook of Acoustics (Kindle Locations=
1553-1555). McGraw-Hill. Kindle Edition. There
is a nice experiment involving two oscillators they use to demonstrate=20
this.=A0 The book is well worth the money if you can get it and read=20
English natively(Not sure what translations exist or how good they=20
are).=A0 I am still working my way through it but it will likely take me=20
two or three times through before I fully understand most of it.<=
div>=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 Seablade

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Messages in current thread:
[LAU] Pro Audio? OT rant., John Murphy, (Sat Dec 22, 2:58 pm)
Re: [LAU] Pro Audio? OT rant., Thomas Vecchione, (Sun Dec 23, 1:57 am)
Re: [LAU] Pro Audio? OT rant., John Murphy, (Sun Dec 23, 2:50 pm)
Re: [LAU] Pro Audio? OT rant., Thomas Vecchione, (Sun Dec 23, 5:42 pm)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Sat Dec 22, 3:43 pm)
Re: [LAU] Pro Audio? OT rant., Len Ovens, (Sat Dec 22, 5:19 pm)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Sat Dec 22, 5:39 pm)
Re: [LAU] Pro Audio? OT rant., John Murphy, (Sat Dec 22, 8:26 pm)
Re: [LAU] Pro Audio? OT rant., Len Ovens, (Sat Dec 22, 9:00 pm)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Sat Dec 22, 9:16 pm)
Re: [LAU] Pro Audio? OT rant., Len Ovens, (Sun Dec 23, 3:21 am)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Sat Dec 22, 5:54 pm)
Re: [LAU] Pro Audio? OT rant., Paul Davis, (Sat Dec 22, 5:44 pm)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Sat Dec 22, 6:01 pm)
Re: [LAU] Pro Audio? OT rant., Thomas Vecchione, (Sun Dec 23, 1:53 am)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Sun Dec 23, 11:33 am)
Re: [LAU] Pro Audio? OT rant., Thomas Vecchione, (Sun Dec 23, 5:39 pm)
Re: [LAU] Pro Audio? OT rant., Chris Bannister, (Mon Dec 24, 2:43 am)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Mon Dec 24, 8:59 am)
Re: [LAU] Pro Audio? OT rant., Ricardus Vincente, (Mon Dec 24, 3:13 pm)
Re: [LAU] Pro Audio? OT rant., Monty Montgomery, (Mon Dec 24, 10:22 pm)
Re: [LAU] Pro Audio? OT rant., Neil, (Mon Dec 24, 11:01 pm)
Re: [LAU] Pro Audio? OT rant., Ricardus Vincente, (Mon Dec 24, 11:31 pm)
Re: [LAU] Pro Audio? OT rant., Neil, (Tue Dec 25, 1:34 am)
Re: [LAU] Pro Audio? OT rant., Fons Adriaensen, (Tue Dec 25, 11:47 am)
Re: [LAU] Pro Audio? OT rant., Fons Adriaensen, (Mon Dec 24, 3:20 pm)
Re: [LAU] Pro Audio? OT rant., Brent Busby, (Mon Dec 24, 4:46 pm)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Mon Dec 24, 9:12 am)
Re: [LAU] Pro Audio? OT rant., Florian Paul Schmidt, (Mon Dec 24, 9:45 am)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Thu Dec 27, 12:36 pm)
Re: [LAU] Pro Audio? OT rant., Jeremy Jongepier, (Tue Dec 25, 1:24 pm)
Re: [LAU] Pro Audio? OT rant., Florian Paul Schmidt, (Tue Dec 25, 1:42 pm)
Re: [LAU] Pro Audio? OT rant., Chris Bannister, (Fri Dec 28, 2:35 am)
Re: [LAU] Pro Audio? OT rant., Florian Paul Schmidt, (Fri Dec 28, 10:31 am)
Re: [LAU] Pro Audio? OT rant., Chris Bannister, (Fri Dec 28, 3:05 pm)
Re: [LAU] Pro Audio? OT rant., Jörn Nettingsmeier, (Sat Dec 29, 6:22 pm)
Re: [LAU] Pro Audio? OT rant., Arnold Krille, (Sat Dec 29, 9:18 pm)
Re: [LAU] Pro Audio? OT rant., Florian Paul Schmidt, (Sat Dec 29, 8:54 pm)
Re: [LAU] Pro Audio? OT rant., Jörn Nettingsmeier, (Sat Dec 29, 11:36 pm)
Re: [LAU] Pro Audio? OT rant., Chris Bannister, (Sun Dec 30, 12:08 pm)
Re: [LAU] Pro Audio? OT rant., Fons Adriaensen, (Sun Dec 30, 2:12 pm)
Re: [LAU] Pro Audio? OT rant., Len Ovens, (Sat Dec 29, 6:30 pm)
Re: [LAU] Pro Audio? OT rant., Chris Cannam, (Fri Dec 28, 4:52 pm)
Re: [LAU] Pro Audio? OT rant., Folderol, (Fri Dec 28, 5:31 pm)
Re: [LAU] Pro Audio? OT rant., Chris Cannam, (Fri Dec 28, 11:06 pm)
Re: [LAU] Pro Audio? OT rant., Fons Adriaensen, (Fri Dec 28, 10:51 pm)
Re: [LAU] Pro Audio? OT rant., Al Thompson, (Sat Dec 29, 2:03 am)
Re: [LAU] Pro Audio? OT rant., Fons Adriaensen, (Sat Dec 29, 11:27 am)
Re: [LAU] Pro Audio? OT rant., Al Thompson, (Sat Dec 29, 3:05 pm)
Re: [LAU] Pro Audio? OT rant., Raffaele Morelli, (Fri Dec 28, 11:12 am)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Thu Dec 27, 2:39 pm)
Re: [LAU] Pro Audio? OT rant., Chris Bannister, (Fri Dec 28, 3:10 am)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Fri Dec 28, 6:25 am)
Re: [LAU] Pro Audio? OT rant., Jeremy Jongepier, (Fri Dec 28, 1:29 pm)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Fri Dec 28, 2:53 pm)
Re: [LAU] Pro Audio? OT rant., Gene Heskett, (Fri Dec 28, 7:13 am)
Re: [LAU] Pro Audio? OT rant., Len Ovens, (Thu Dec 27, 3:10 pm)
Re: [LAU] Pro Audio? OT rant., Fons Adriaensen, (Thu Dec 27, 5:20 pm)
Re: [LAU] Pro Audio? OT rant., Len Ovens, (Thu Dec 27, 11:31 pm)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Thu Dec 27, 5:25 pm)
Re: [LAU] Pro Audio? OT rant., Neil, (Thu Dec 27, 10:37 pm)
Re: [LAU] Pro Audio? OT rant., Fernando Lopez-Lezcano, (Mon Dec 31, 2:28 am)
Re: [LAU] Pro Audio? OT rant., Neil, (Mon Dec 31, 8:15 pm)
Re: [LAU] Pro Audio? OT rant., Charles Henry, (Mon Dec 31, 8:57 pm)
Re: [LAU] Pro Audio? OT rant., Monty Montgomery, (Wed Jan 2, 8:35 am)
Re: [LAU] Pro Audio? OT rant., Neil, (Mon Dec 31, 9:17 pm)
Re: [LAU] Pro Audio? OT rant., Charles Henry, (Mon Dec 31, 9:39 pm)
Re: [LAU] Pro Audio? OT rant., Tim E. Real, (Mon Dec 31, 10:44 pm)
Re: [LAU] Pro Audio? OT rant., Thomas Vecchione, (Tue Jan 1, 5:23 pm)
Re: [LAU] Pro Audio? OT rant., Al Thompson, (Tue Jan 1, 6:37 pm)
Re: [LAU] Pro Audio? OT rant., Gene Heskett, (Tue Jan 1, 7:20 pm)
Re: [LAU] Pro Audio? OT rant., Al Thompson, (Wed Jan 2, 12:26 am)
Re: [LAU] Pro Audio? OT rant., Tim E. Real, (Wed Jan 2, 8:14 am)
Re: [LAU] Pro Audio? OT rant., Al Thompson, (Wed Jan 2, 8:23 am)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Tue Jan 8, 2:30 pm)
Re: [LAU] Pro Audio? OT rant., Folderol, (Mon Dec 31, 10:02 pm)
Re: [LAU] Pro Audio? OT rant., Monty Montgomery, (Wed Jan 2, 8:43 am)
Re: [LAU] Pro Audio? OT rant., Thomas Vecchione, (Fri Dec 28, 2:38 am)
Re: [LAU] Pro Audio? OT rant., Monty Montgomery, (Thu Dec 27, 11:22 pm)
Re: [LAU] Pro Audio? OT rant., Neil, (Fri Dec 28, 4:41 am)
Re: [LAU] Pro Audio? OT rant., Monty Montgomery, (Thu Dec 27, 11:24 pm)
Re: [LAU] Pro Audio? OT rant., Len Ovens, (Thu Dec 27, 11:14 pm)
Re: [LAU] Pro Audio? OT rant., Neil, (Thu Dec 27, 11:23 pm)
Re: [LAU] Pro Audio? OT rant., Len Ovens, (Thu Dec 27, 11:47 pm)
Re: [LAU] Pro Audio? OT rant., Gene Heskett, (Fri Dec 28, 12:22 am)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Fri Dec 28, 5:30 am)
Re: [LAU] Pro Audio? OT rant., Fons Adriaensen, (Fri Dec 28, 12:18 am)
Re: [LAU] Pro Audio? OT rant., Len Ovens, (Sat Dec 29, 2:38 am)
Re: [LAU] Pro Audio? OT rant., Fons Adriaensen, (Sat Dec 29, 11:13 am)
Re: [LAU] Pro Audio? OT rant., Thomas Vecchione, (Sat Dec 29, 2:48 pm)
Re: [LAU] Pro Audio? OT rant., Fons Adriaensen, (Sat Dec 29, 7:54 pm)
Re: [LAU] Pro Audio? OT rant., Al Thompson, (Sun Dec 30, 4:19 pm)
Re: [LAU] Pro Audio? OT rant., Fons Adriaensen, (Sun Dec 30, 4:53 pm)
Re: [LAU] Pro Audio? OT rant., Len Ovens, (Sun Dec 30, 4:57 pm)
[LAU] Live mic and monitoring (was rant.), Len Ovens, (Sat Dec 29, 8:56 pm)
Re: [LAU] Live mic and monitoring (was rant.), Marius Janßen, (Sat Dec 29, 11:26 pm)
Re: [LAU] Live mic and monitoring (was rant.), Roger, (Sun Dec 30, 9:35 am)
Re: [LAU] Live mic and monitoring (was rant.), Thomas Vecchione, (Sun Dec 30, 10:48 am)
Re: [LAU] Live mic and monitoring (was rant.), Jörn Nettingsmeier, (Sat Dec 29, 11:23 pm)
Re: [LAU] Live mic and monitoring (was rant.), Thomas Vecchione, (Sun Dec 30, 10:43 am)
Re: [LAU] Pro Audio? OT rant., Thomas Vecchione, (Sat Dec 29, 2:55 am)
Re: [LAU] Pro Audio? OT rant., Bob van der Poel, (Sat Dec 29, 3:07 am)
Re: [LAU] Pro Audio? OT rant., Brett McCoy, (Thu Dec 27, 11:36 pm)
Re: [LAU] Pro Audio? OT rant., Fons Adriaensen, (Thu Dec 27, 11:07 pm)
Re: [LAU] Pro Audio? OT rant., Al Thompson, (Wed Dec 26, 5:51 am)
Re: [LAU] Pro Audio? OT rant., Thomas Vecchione, (Mon Dec 24, 7:17 am)
Re: [LAU] Pro Audio? OT rant., Brent Busby, (Mon Dec 24, 4:38 pm)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Thu Dec 27, 1:57 pm)
Re: [LAU] Pro Audio? OT rant., Jeremy Jongepier, (Tue Dec 25, 1:33 pm)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Thu Dec 27, 2:27 pm)
Re: [LAU] Pro Audio? OT rant., Monty Montgomery, (Tue Dec 25, 2:11 am)
Re: [LAU] Pro Audio? OT rant., Thomas Vecchione, (Mon Dec 24, 5:08 pm)
Re: [LAU] Pro Audio? OT rant., Fons Adriaensen, (Mon Dec 24, 2:27 pm)
Re: [LAU] Pro Audio? OT rant., SxDx, (Mon Dec 24, 3:25 pm)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Thu Dec 27, 1:27 pm)
Re: [LAU] Pro Audio? OT rant., Fons Adriaensen, (Mon Dec 24, 3:40 pm)
Re: [LAU] Pro Audio? OT rant., Ricardus Vincente, (Mon Dec 24, 4:33 pm)
Re: [LAU] Pro Audio? OT rant., Paul Davis, (Mon Dec 24, 3:46 pm)
Re: [LAU] Pro Audio? OT rant., Fons Adriaensen, (Mon Dec 24, 4:37 pm)
Re: [LAU] Pro Audio? OT rant., Thomas Vecchione, (Mon Dec 24, 5:05 pm)
Re: [LAU] Pro Audio? OT rant., Fons Adriaensen, (Mon Dec 24, 4:01 pm)
Re: [LAU] Pro Audio? OT rant., Thomas Vecchione, (Mon Dec 24, 3:01 pm)
Re: [LAU] Pro Audio? OT rant., Paul Davis, (Mon Dec 24, 2:48 pm)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Thu Dec 27, 1:10 pm)
Re: [LAU] Pro Audio? OT rant., Thomas Vecchione, (Mon Dec 24, 3:05 pm)
Re: [LAU] Pro Audio? OT rant., SxDx, (Mon Dec 24, 8:58 am)
Re: [LAU] Pro Audio? OT rant., Monty Montgomery, (Mon Dec 24, 3:14 am)
Re: [LAU] Pro Audio? OT rant., Ricardus Vincente, (Mon Dec 24, 3:23 am)
Re: [LAU] Pro Audio? OT rant., Fons Adriaensen, (Sun Dec 23, 10:45 am)
Re: [LAU] Pro Audio? OT rant., Thomas Vecchione, (Sun Dec 23, 5:30 pm)
Re: [LAU] Pro Audio? OT rant., Fons Adriaensen, (Sun Dec 23, 9:35 pm)
Re: [LAU] Pro Audio? OT rant., Thomas Vecchione, (Sun Dec 23, 10:05 pm)
Re: [LAU] Pro Audio? OT rant., Fons Adriaensen, (Sun Dec 23, 10:17 pm)
Re: [LAU] Pro Audio? OT rant., Monty Montgomery, (Sun Dec 23, 10:32 pm)
Re: [LAU] Pro Audio? OT rant., Monty Montgomery, (Sun Dec 23, 10:17 pm)
Re: [LAU] Pro Audio? OT rant., Joe Hartley, (Sun Dec 23, 6:07 pm)
Re: [LAU] Pro Audio? OT rant., Fons Adriaensen, (Sun Dec 23, 9:01 pm)
Re: [LAU] Pro Audio? OT rant., Gene Heskett, (Sun Dec 23, 7:48 pm)
Re: [LAU] Pro Audio? OT rant., Fons Adriaensen, (Sun Dec 23, 10:05 pm)
Re: [LAU] Pro Audio? OT rant., Chris Bannister, (Mon Dec 24, 3:20 am)
Re: [LAU] Pro Audio? OT rant., Fons Adriaensen, (Mon Dec 24, 1:55 pm)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Thu Dec 27, 12:53 pm)
Re: [LAU] Pro Audio? OT rant., Gene Heskett, (Thu Dec 27, 1:05 pm)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Thu Dec 27, 3:17 pm)
Re: [LAU] Pro Audio? OT rant., Gene Heskett, (Mon Dec 24, 4:13 pm)
Re: [LAU] Pro Audio? OT rant., Monty Montgomery, (Mon Dec 24, 3:47 am)
Re: [LAU] Pro Audio? OT rant., Monty Montgomery, (Mon Dec 24, 3:49 am)
Re: [LAU] Pro Audio? OT rant., Monty Montgomery, (Sun Dec 23, 10:01 pm)
Re: [LAU] Pro Audio? OT rant., Paul Davis, (Sat Dec 22, 9:53 pm)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Sat Dec 22, 10:05 pm)
Re: [LAU] Pro Audio? OT rant., Ralf Mardorf, (Sat Dec 22, 7:10 pm)