Re: [linux-audio-user] Re: 192kHz

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To: A list for linux audio users <linux-audio-user@...>
Date: Saturday, January 28, 2006 - 4:39 pm

On Saturday 28 January 2006 08:11, Wolfgang Woehl wrote:

To elucidate a wee bit, my comment was meant to be refering to mixers in
the electronic sense. Mixing products of just two tones will contain
each signal, and the sum and difference frequencies of them will be
determined by the amount of non-linearity in the mixer. Trade the term
non-linearity for distortion and it might become clearer. In audio
work, the target is of course no distortion, but getting rid of that
last .1% is what you spend unseemly amounts of money on, and play
pissing matches as to what method is better, yadda yadda. Of course in
receivers, the so-called local carrier is driven into the mixer quite
hard so the resultant output contains as much of these sum & difference
frequencies as possible. And then we filter for the sum, or the
difference, and use that as the intermediate frequency of the classic
superheterodyne receiver.

However, one tends to forget that the ears own response also generates
its own distortion, primarily because the amplitude vs loudness is
fairly close to an inverse square law function for single tones, and is
why the db was invented all those years ago.

Put the human ear into a multitone situation, and there can be some
detected distortion/aliasing heard even for tones coming from two
completely independent amplifier/speaker setups where there shouldn't
be any interaction between them.

I'm of the opinion that those folks who can lay claim to a golden ear,
either don't have as much of this effect in the first place, or their
ears have trained themselves into totally ignoreing that portion of the
distortion which is ear generated. I was once such, 50 years ago, but
alas, at 71, tinnitus has set in and while I can still hear bad audio
quicker than many younger folks, it is not as nerve wracking as it used
to be. One could say I've developed a tolerance for it I guess.

But, because I have been a broadcast engineer, now almost retired, for
much of my working life, I still need to hear when things aren't right,
so I can fix them before those emails start coming in. :-)

--
Cheers, Gene
People having trouble with vz bouncing email to me should add the word
'online' between the 'verizon', and the dot which bypasses vz's
stupid bounce rules. I do use spamassassin too. :-)
Yahoo.com and AOL/TW attorneys please note, additions to the above
message by Gene Heskett are:
Copyright 2006 by Maurice Eugene Heskett, all rights reserved.

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Messages in current thread:
[linux-audio-user] 192kHz, Carlo Capocasa, (Thu Jan 26, 12:25 pm)
Re: [linux-audio-user] 192kHz, Esben Stien, (Fri Jan 27, 1:28 am)
Re: [linux-audio-user] 192kHz, Esben Stien, (Fri Jan 27, 2:23 am)
Re: [linux-audio-user] 192kHz, Florin Andrei, (Thu Jan 26, 4:42 pm)
[linux-audio-user] Re: 192kHz, Carlo Capocasa, (Thu Jan 26, 7:27 pm)
Re: [linux-audio-user] Re: 192kHz, Florin Andrei, (Fri Jan 27, 5:52 am)
Re: [linux-audio-user] Re: 192kHz, cdr, (Fri Jan 27, 6:28 am)
Re: [linux-audio-user] Re: 192kHz, Florin Andrei, (Fri Jan 27, 5:47 pm)
[linux-audio-user] Re: 192kHz, Mike Taht, (Fri Jan 27, 6:12 pm)
Re: [linux-audio-user] Re: 192kHz, Lee Revell, (Fri Jan 27, 6:20 am)
Re: [linux-audio-user] Re: 192kHz, Florin Andrei, (Fri Jan 27, 5:44 pm)
Re: [linux-audio-user] Re: 192kHz, tim hall, (Sat Jan 28, 12:10 pm)
Re: [linux-audio-user] Re: 192kHz, Brent Busby, (Fri Jan 27, 6:31 pm)
Re: [linux-audio-user] Re: 192kHz, tim hall, (Sat Jan 28, 12:52 pm)
Re: [linux-audio-user] Re: 192kHz, Esben Stien, (Fri Jan 27, 10:39 pm)
[linux-audio-user] Re: 192kHz, Carlo Capocasa, (Sat Jan 28, 12:18 pm)
Re: [linux-audio-user] Re: 192kHz, Sampo Savolainen, (Sat Jan 28, 11:21 pm)
Re: [linux-audio-user] Re: 192kHz, Nigel Henry, (Mon Jan 30, 10:58 pm)
Re: [linux-audio-user] Re: 192kHz, Hans Fugal, (Sat Jan 28, 4:10 pm)
Re: [linux-audio-user] Re: 192kHz, Ismael Valladolid Torres, (Sat Jan 28, 6:49 pm)
[linux-audio-user] Re: 192kHz, Mike Taht, (Sat Jan 28, 7:27 pm)
Re: [linux-audio-user] Re: 192kHz, Hans Fugal, (Sat Jan 28, 7:37 pm)
[linux-audio-user] Re: 192kHz, Mike Taht, (Sat Jan 28, 7:44 pm)
Re: [linux-audio-user] Re: 192kHz, Michael T D Nelson, (Sat Jan 28, 1:26 pm)
[linux-audio-user] Re: 192kHz, Carlo Capocasa, (Sat Jan 28, 10:02 pm)
Re: [linux-audio-user] Re: 192kHz, Paul Winkler, (Sat Jan 28, 11:46 pm)
Re: [linux-audio-user] Re: 192kHz, Ismael Valladolid Torres, (Sat Jan 28, 10:45 am)
Re: [linux-audio-user] Re: 192kHz, fons adriaensen, (Sat Jan 28, 12:15 am)
Re: [linux-audio-user] Re: 192kHz, Wolfgang Woehl, (Sat Jan 28, 1:11 pm)
Re: [linux-audio-user] Re: 192kHz, Gene Heskett, (Sat Jan 28, 4:39 pm)
Re: [linux-audio-user] Re: 192kHz, Ismael Valladolid Torres, (Sat Jan 28, 6:46 pm)
Re: [linux-audio-user] Re: 192kHz, Gene Heskett, (Sun Jan 29, 12:04 am)
Re: [linux-audio-user] Re: 192kHz, tim hall, (Sun Jan 29, 12:42 pm)
Re: [linux-audio-user] Re: 192kHz, fons adriaensen, (Sat Jan 28, 3:42 pm)
Re: [linux-audio-user] Re: 192kHz, Wolfgang Woehl, (Sun Jan 29, 12:41 pm)
Re: [linux-audio-user] Re: 192kHz, John Anderson, (Sun Feb 5, 7:33 pm)
Re: [linux-audio-user] Re: 192kHz, fons adriaensen, (Sun Feb 5, 8:28 pm)
Re: [linux-audio-user] Re: 192kHz, fons adriaensen, (Sun Jan 29, 2:47 pm)
Re: [linux-audio-user] Re: 192kHz, Wolfgang Woehl, (Sun Jan 29, 8:09 pm)
Re: [linux-audio-user] Re: 192kHz, fons adriaensen, (Sun Jan 29, 11:17 pm)
Re: [linux-audio-user] Re: 192kHz, Tracey Hytry, (Sun Jan 29, 3:04 pm)
Re: [linux-audio-user] Re: 192kHz, Wolfgang Woehl, (Sun Jan 29, 8:21 pm)
Re: [linux-audio-user] Re: 192kHz, studio64, (Mon Jan 30, 1:13 am)
Re: [linux-audio-user] Re: 192kHz, Gene Heskett, (Sun Jan 29, 9:21 pm)
Re: [linux-audio-user] Re: 192kHz, Cesare Marilungo, (Sun Jan 29, 10:13 pm)
Re: [linux-audio-user] Re: 192kHz, Phil Sexton, (Mon Jan 30, 2:23 am)
Re: [linux-audio-user] Re: 192kHz, Georg Holzmann, (Sun Jan 29, 10:17 pm)
Re: [linux-audio-user] Re: 192kHz, Cesare Marilungo, (Sun Jan 29, 10:26 pm)
Re: [linux-audio-user] Re: 192kHz, Thomas Ilnseher, (Mon Jan 30, 12:52 am)
Re: [linux-audio-user] Re: 192kHz, Folderol, (Sun Jan 29, 10:53 pm)
Re: [linux-audio-user] Re: 192kHz, Cesare Marilungo, (Sun Jan 29, 11:21 pm)
Re: [linux-audio-user] Re: 192kHz, fons adriaensen, (Sun Jan 29, 11:06 pm)
Re: [linux-audio-user] Re: 192kHz, Folderol, (Mon Jan 30, 8:38 pm)
Re: [linux-audio-user] Re: 192kHz, Thomas Ilnseher, (Mon Jan 30, 12:55 am)
Re: [linux-audio-user] Re: 192kHz, Georg Holzmann, (Sun Jan 29, 10:31 pm)
Re: [linux-audio-user] Re: 192kHz, Cesare Marilungo, (Sun Jan 29, 10:42 pm)
Re: [linux-audio-user] Re: 192kHz, Folderol, (Sun Jan 29, 9:46 pm)
Re: [linux-audio-user] Re: 192kHz, Jan Depner, (Sat Jan 28, 2:49 pm)
Re: [linux-audio-user] Re: 192kHz, Wolfgang Woehl, (Sun Jan 29, 12:41 pm)
[linux-audio-user] Re: 192kHz, Mike Taht, (Thu Jan 26, 5:30 pm)
[linux-audio-user] Re: 192kHz, Carlo Capocasa, (Thu Jan 26, 7:40 pm)
Re: [linux-audio-user] 192kHz, Ismael Valladolid Torres, (Thu Jan 26, 2:53 pm)
Re: [linux-audio-user] 192kHz, Wolfgang Woehl, (Thu Jan 26, 8:35 pm)
Re: [linux-audio-user] 192kHz, Gene Heskett, (Thu Jan 26, 9:12 pm)
Re: [linux-audio-user] 192kHz, Folderol, (Thu Jan 26, 9:47 pm)
Re: [linux-audio-user] 192kHz, David Cournapeau, (Tue Feb 7, 9:26 am)
Re: [linux-audio-user] 192kHz, Gene Heskett, (Tue Feb 7, 3:37 pm)
[linux-audio-user] Re: 192kHz, Carlo Capocasa, (Thu Jan 26, 7:30 pm)
Re: [linux-audio-user] Re: 192kHz, Michael T D Nelson, (Thu Jan 26, 9:27 pm)
Re: [linux-audio-user] Re: 192kHz, Ismael Valladolid Torres, (Fri Jan 27, 8:59 am)
Re: [linux-audio-user] Re: 192kHz, Florin Andrei, (Fri Jan 27, 6:57 pm)
Re: [linux-audio-user] Re: 192kHz, Sylvain Robitaille, (Fri Jan 27, 5:56 pm)
Re: [linux-audio-user] Re: 192kHz, Michael T D Nelson, (Fri Jan 27, 10:07 am)
Re: [linux-audio-user] Re: 192kHz, tim hall, (Sat Jan 28, 11:50 am)
Re: [linux-audio-user] Re: 192kHz (now a bit OT), Michael T D Nelson, (Sat Jan 28, 1:07 pm)
Re: [linux-audio-user] Re: 192kHz (now a bit OT), Ismael Valladolid Torres, (Sat Jan 28, 6:43 pm)
Re: [linux-audio-user] Re: 192kHz (now a bit OT), Gene Heskett, (Sat Jan 28, 11:23 pm)
Re: [linux-audio-user] Re: 192kHz (now a bit OT), tim hall, (Sat Jan 28, 2:36 pm)
Re: [linux-audio-user] Re: 192kHz, studio64, (Fri Jan 27, 4:57 pm)
Re: [linux-audio-user] Re: 192kHz, Ismael Valladolid Torres, (Fri Jan 27, 1:07 pm)
Re: [linux-audio-user] Re: 192kHz (Now a bit OT), Michael T D Nelson, (Fri Jan 27, 2:01 pm)
Re: [linux-audio-user] Re: 192kHz (Now a bit OT), Florin Andrei, (Fri Jan 27, 7:06 pm)
Re: [linux-audio-user] Re: 192kHz, Gene Heskett, (Thu Jan 26, 9:11 pm)
Re: [linux-audio-user] 192kHz, Joe Hartley, (Thu Jan 26, 1:29 pm)
Re: [linux-audio-user] 192kHz, Mark Knecht, (Fri Jan 27, 1:13 pm)
Re: [linux-audio-user] 192kHz, Ismael Valladolid Torres, (Sat Jan 28, 10:45 am)
Re: [linux-audio-user] 192kHz, Jan Depner, (Thu Jan 26, 11:21 pm)
[linux-audio-user] Re: 192kHz, Carlo Capocasa, (Thu Jan 26, 7:22 pm)
Re: [linux-audio-user] 192kHz, Ismael Valladolid Torres, (Thu Jan 26, 2:56 pm)
Re: [linux-audio-user] 192kHz, Cesare Marilungo, (Thu Jan 26, 1:35 pm)
[linux-audio-user] Re: 192kHz, Carlo Capocasa, (Thu Jan 26, 7:17 pm)
Re: [linux-audio-user] Re: 192kHz, Florin Andrei, (Fri Jan 27, 6:54 pm)
Re: [linux-audio-user] Re: 192kHz, Paul Winkler, (Fri Jan 27, 9:28 pm)
Re: [linux-audio-user] Re: 192kHz, Hannu Savolainen, (Thu Jan 26, 11:18 pm)
[linux-audio-user] Re: 192kHz, Loki Davison, (Thu Jan 26, 12:34 pm)
[linux-audio-user] Re: 192kHz, Carlo Capocasa, (Thu Jan 26, 7:01 pm)
Re: [linux-audio-user] Re: 192kHz, Paul Davis, (Thu Jan 26, 2:32 pm)
Re: [linux-audio-user] Re: 192kHz, Reuben Martin, (Mon Feb 6, 5:00 am)
[linux-audio-user] Re: 192kHz, Carlo Capocasa, (Thu Jan 26, 7:12 pm)