[linux-audio-user] looking for audio compositor/sequencer

Eric Dantan Rzewnicki rzewnickie at rfa.org
Wed Nov 12 11:48:26 EST 2003

To be more specific and add another vote for ecasound, here is an
example from the ecasound docs at

" Cut, copy and paste

   1. ecasound -i bigfile.wav -o part1.wav -t:60.0
   2. ecasound -i bigfile.wav -y:60.0 -o part2.wav

      Here's a simple example where first 60 seconds of bigfile.wav is
written to part1.wav and the rest to part2.wav. If you want to combine
these files back to one big file:

   3. ecasound -i part2.wav -o part1.wav -y:500

      part2.wav is appended to part1.wav "

I'm using this functionality in a shell script that takes 12 ~5 minute 
wav files and concatenates them into 4 ~15 minutes wav files. I'll post
it tonight when I get home from work.

ecasound can also give you the length in seconds (and milliseconds) of a 
file so that you can possible script your insertion points ... I haven't 
figured that out exactly, yet, but believe it can be done by parsing the
output of ecalength (an ecasound tool included with ecasound). There may 
be a cleaner, easier way as well.

-Eric Rz.

On Wed, Nov 12, 2003 at 10:01:00AM +0400, Guy Daniel CLOTILDE wrote:
> Hi
> Denis McLaughlin wrote / a ?crit:
> > I'm looking for
> something driven via the command-line or in a script because I want to
> composite close to a hundred different clips with second-accurate
> insertion points, so I don't much fancy doing this with the plethora of
> gui sound editors that exist.
> I strongly believe ecasound can do the job, with the appropriate parameters:
> http://www.wakkanet.fi/~kaiv/ecasound/welcome.html
> GuyCLO~

More information about the Linux-audio-user mailing list