[LAU] normalize from command line

Renato rennabh at gmail.com
Fri Aug 26 13:15:30 UTC 2011


On Wed, 24 Aug 2011 17:21:50 -0700
Ken Restivo <ken at restivo.org> wrote:

> On Tue, Aug 23, 2011 at 01:47:43PM +0200, Renato wrote:
> > Hello, what is a cheap and easy way to normalize a bunch of audio
> > files from command line / shell script? Preferably something that
> > works with various formats (.wav, .aiff, .flac and possibly
> > even .ogg and .mp3)
> > 
> > 
> 
> Sorry, forgot to copy list. Been using this for ~10 years now.
> 
> #!/bin/sh
> #normalize everything
> 
> for i in `ls *wav`; do 
> 	FOO=`sox $i -e stat -v 2>&1`
> 	BN=`basename $i .wav`
> 	echo "norming $i with factor $FOO ..."
> 	sox -v $FOO $i -t wav ${BN}.norm.wav
> done
> 

mmh, getting this error:

norming scrivania_varie.wav with factor sox FAIL sox: --encoding: `stat' is not one of: signed-integer, unsigned-integer, floating-point, ms-adpcm, ima-adpcm, oki-adpcm, gsm-full-rate, u-law, mu-law, a-law. ...
sox FAIL sox: Volume value `sox' is not a number


(with sox 14.3.2)

renato


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