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To: Linux for blind general discussion <blinux-list@redhat.com>
Subject: Re: analyze a .wav or .mp3 file 
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Date: Mon, 11 Jan 2010 16:53:53 -0600
From: Martin McCormick <martin@dc.cis.okstate.edu>
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I just tried it and it will tell you if a .wav file is silent
but it didn't work on a mp3 so I was a bit mistaken. I think the
sox man page says it can handle mp3's if you have certain
libraries. It definitely worked on a 10-second sample of
stereophonic silence. Actually, it just has 0's for the
maximum, minimum and average levels so you might pipe that
through another decision to get a silence detector.

	Mplayer will convert mp3's to wav files.

Martin