Re: [LAU] Normalize from command line?

On Fri, Apr 25, 2008 at 4:03 PM, Justin Smith <noisesmith@email-addr-hidden> wrote:
>
> On Fri, Apr 25, 2008 at 3:09 PM, Peter Plessas <plessas@email-addr-hidden> wrote:
> > Dear List,
> >
> > does anyone know of an application (or script) to normalize audio-files
> > from the command line? I have only come across "normalize-audio" which
> > does compression across multiple files, but i haven't figured out how to
> > raise the amplitude of a file to +/-1 without altering it's dynamics. I
> > am sure this could be done using a two-pass sox script, but before i
> > start writing my own, i wanted to know if a similar solution already exists.
> >
> > Thanks for any hints,
> >
> > Peter
> > _______________________________________________
> > Linux-audio-user mailing list
> > Linux-audio-user@email-addr-hidden
> > http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
> >
>
> this is a script I call 0db
> -----------------------------------------------------------------------------------------------------------
> #!/bin/sh
> if [ $# -eq 1 ]; then {
> o=`echo $1 | sed -e 's/\([^\.]*\)\(\.\)\(.*\)/\1_normalized.\3/'`
> }; else {
> o=$2
> }; fi
> sox -v $(sox $1 -n stat 2>&1 | grep Volume | sed -e 's/[^0-9]*\(.*\)/\1/') $1 $o
> -------------------------------------------------------------------------------------------------------------
>
> If you drag file.wav to its icon, it will create file_normalized.wav,
> if you call it on the command line with one argument, it has the same
> behaviour. If you call from the command line like so: '0db file.wav
> new.wav' it will create new.wav, as you would expect.
>

I see someone else already offered a more convenient solution, but
this one does have the advantage(?) of not overwriting the original
file.
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Received on Sat Apr 26 04:15:09 2008