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Truncating silence from several tracks simultaneously

Posted: Wed Oct 20, 2010 8:48 pm
by Carborundum
Hello all,

I'm using Audacity to record a very large amount (1000+) of very short (1-3 seconds) tracks (they are pronunciation examples for a language I'm learning). As per the thread title, I'm trying and failing to use the Truncate Silence effect on all of them at the same time. When I use it for one track at a time it works great, but that would get old quick if I had to do it manually for all of them.
What happens when I try to use it for several tracks simultaneously is that only audio that is silent in every track gets truncated.

Another minor problem I'm having is that my microphone pics up the sound of my clicking the Stop Recording button, so all of the tracks have a short but clearly audible *click*-sound at the end. I think the easiest and most effective way to deal with this would be to simply remove the final 50 ms or so of every track, but I can't seem to find an easy way to do that either.

I'm hoping someone can explain to me how to accomplish these tasks.
Thanks in advance.

Re: Truncating silence from several tracks simultaneously

Posted: Wed Oct 20, 2010 10:20 pm
by steve
Re. Truncate silence - you could do that as a "batch" process.
Audacity has some (limited) batch processing ability by creating "chains" of commands that can then be applied to multiple files.
See here for the documentation about "Chains" in the manual: http://manual.audacityteam.org/index.ph ... dit_Chains

Unfortunately it is not possible to trim the end off each file using chains.

Re: Truncating silence from several tracks simultaneously

Posted: Thu Oct 21, 2010 9:44 am
by Carborundum
Thanks, that did it.
I found that using the spacebar to stop recording is less noisy than using the mouse, so I'll do that in the future.