Re: [LAD] A little quiz about audio measurements...

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To: Ralf Mardorf <ralf.mardorf@...>
Cc: Linux Audio Developers <linux-audio-dev@...>
Date: Friday, May 28, 2010 - 6:08 pm

On Fri, 28 May 2010, Ralf Mardorf wrote:

>>> The 100 Hz (being 2x 50Hz, the power freq. in Italy)

X. A has already been "proven" -- unless it's a trick
question that we can't trust that "proof."

> Why AM and not additive signals?

Because the peaks shift with the input signal. If the
signals were just added (mixed) then the peaks would always
be at 100Hz, 200Hz, 300Hz... etc. and have the same
amplitude.

Try modelling it up with AMS (that's what I did).

-gabriel

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Messages in current thread:
Re: [LAD] A little quiz about audio measurements..., Niels Mayer, (Fri May 28, 3:31 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 5:00 pm)
Re: [LAD] A little quiz about audio measurements..., Karsten Wiese, (Sun May 30, 2:06 pm)
Re: [LAD] A little quiz about audio measurements..., Karsten Wiese, (Sun May 30, 4:08 pm)
Re: [LAD] A little quiz about audio measurements..., Niels Mayer, (Fri May 28, 6:27 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 6:39 pm)
Re: [LAD] A little quiz about audio measurements..., Veronica Merryfield, (Fri May 28, 7:14 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 7:17 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 9:24 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 10:33 pm)
Re: [LAD] A little quiz about audio measurements..., Veronica Merryfield, (Sat May 29, 1:59 am)
Re: [LAD] A little quiz about audio measurements..., Gene Heskett, (Fri May 28, 11:56 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Sat May 29, 6:30 am)
Re: [LAD] A little quiz about audio measurements..., Veronica Merryfield, (Sat May 29, 6:42 am)
Re: [LAD] A little quiz about audio measurements..., Gene Heskett, (Sat May 29, 3:58 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Sat May 29, 7:14 am)
Re: [LAD] A little quiz about audio measurements..., Gene Heskett, (Sat May 29, 4:19 pm)
Re: [LAD] A little quiz about audio measurements..., Jens M Andreasen, (Sun May 30, 5:29 am)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Sun May 30, 11:05 am)
Re: [LAD] A little quiz about audio measurements..., Jens M Andreasen, (Sun May 30, 12:29 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Sun May 30, 12:35 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 10:42 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 6:30 pm)
Re: [LAD] A little quiz about audio measurements..., Gabriel M. Beddingfield, (Fri May 28, 5:40 pm)
Re: [LAD] A little quiz about audio measurements..., James Morris, (Fri May 28, 6:28 pm)
Re: [LAD] A little quiz about audio measurements..., Veronica Merryfield, (Fri May 28, 6:15 pm)
Re: [LAD] A little quiz about audio measurements..., Gabriel M. Beddingfield, (Fri May 28, 6:23 pm)
Re: [LAD] A little quiz about audio measurements..., Gabriel M. Beddingfield, (Fri May 28, 6:40 pm)
Re: [LAD] A little quiz about audio measurements..., Jens M Andreasen, (Fri May 28, 7:12 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 6:50 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 6:52 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 6:26 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 6:22 pm)
Re: [LAD] A little quiz about audio measurements..., Jens M Andreasen, (Fri May 28, 5:58 pm)
Re: [LAD] A little quiz about audio measurements..., Gabriel Beddingfield, (Fri May 28, 5:50 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 5:57 pm)
Re: [LAD] A little quiz about audio measurements..., Gabriel M. Beddingfield, (Fri May 28, 6:08 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 6:18 pm)
Re: [LAD] A little quiz about audio measurements..., Arnold Krille, (Fri May 28, 5:24 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 4:33 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 4:39 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 3:24 pm)
Re: [LAD] A little quiz about audio measurements..., Robin Gareus, (Fri May 28, 3:05 pm)
Re: [LAD] A little quiz about audio measurements..., Veronica Merryfield, (Fri May 28, 5:00 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 5:21 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 5:37 pm)
Re: [LAD] A little quiz about audio measurements..., Robin Gareus, (Fri May 28, 3:39 pm)
Re: [LAD] A little quiz about audio measurements..., Veronica Merryfield, (Fri May 28, 6:55 pm)
Re: [LAD] A little quiz about audio measurements..., Ricardus Vincente, (Fri May 28, 7:15 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 7:20 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 7:07 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 7:14 pm)
Re: [LAD] A little quiz about audio measurements..., Robin Gareus, (Fri May 28, 5:22 pm)
Re: [LAD] A little quiz about audio measurements..., Jens M Andreasen, (Fri May 28, 8:52 pm)
Re: [LAD] A little quiz about audio measurements..., Jens M Andreasen, (Fri May 28, 9:34 pm)
Re: [LAD] A little quiz about audio measurements..., Jens M Andreasen, (Fri May 28, 10:31 pm)
Re: [LAD] A little quiz about audio measurements..., Florian Faber, (Fri May 28, 4:54 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 5:04 pm)
Re: [LAD] A little quiz about audio measurements..., Chris Cannam, (Fri May 28, 2:53 pm)
Re: [LAD] A little quiz about audio measurements..., Ralf Mardorf, (Fri May 28, 3:05 pm)
Re: [LAD] A little quiz about audio measurements..., Robin Gareus, (Fri May 28, 3:27 pm)
Re: [LAD] A little quiz about audio measurements..., Gene Heskett, (Fri May 28, 2:37 pm)
Re: [LAD] A little quiz about audio measurements..., Florian Faber, (Fri May 28, 1:35 pm)