Re: [linux-audio-user] changing speed without changing pitch

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Subject: Re: [linux-audio-user] changing speed without changing pitch
From: Frank Barknecht (barknech_AT_ph-cip.uni-koeln.de)
Date: Wed Aug 21 2002 - 00:15:11 EEST

Hi,
Peter Jay Salzman hat gesagt: // Peter Jay Salzman wrote:

> supposedly, sox can do it. but darned if i can figure that program out.
> i'm not shy about command line interfaces, but that program needs a
> wrapper!
>
> i assume what i can do is possible. as i understand it, it's easy to
> change the speed of digital music without changing the pitch.

Time streching is technically far from easy, but with sox it goes like this:

$ sox
sox: Usage: [ gopts ] [ fopts ] ifile [ fopts ] ofile [ effect [ effopts ] ]

Failed at: No input file?
$ sox hmmbaby-mono.wav hmm-stretched.wav stretch 1.5
$ ls -l hmmbaby-mono.wav hmm-stretched.wav
-rw-rw-r-- 1 freak freak 260032 Aug 20 23:11 hmm-stretched.wav
-rw-rw-r-- 1 freak freak 173552 Nov 30 2000 hmmbaby-mono.wav

ciao 

-- 
 Frank Barknecht                               _ ______footils.org__

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