Re: [ecasound] Making a mix from multiple WAVs faster

From: Julien Claassen <>
Date: Fri Aug 01 2008 - 12:25:21 EEST

   1. You could directly ouput the downmix to an mp3 file:
ecasound -a:1 -i ... -a:2 -i ... ... -a:all -o output.mp3
   2. You can probably trim all files with one command as well:
ecasound -a:1 -i file1.wav -o out1.wav -y:2.3 ... -a:2 -i file2.wav -o
out2.wav -y:0 ... -a:N -i fileN.wav -o outN.wav -y:3.1 ...
   I guess you can do the full process in one command. Using the latest
ecasound snapshot the pre4-2.5.0.
   There are the playat and other nice audio ops.
   If you can manage there are a lot of advantages:
1. Storage minimisation
2. Only one ecasound command
3. Which means: all the initialisation phases are reduced to one.
   PLEASE all have a look at this, for I'm not 100% sure:
ecasound -a:1 -i playat,play_time,file1.wav -y:start_trim -gc:... -ea:... (the
other chains) -a:all -o output.mp3
   Just noticed again: Playat just moves the sample along the time of the
complete song. thus:
ecasound -i playat,2,file.wav -o output.wav
   will play file.wav completely, but with 2 seconds silence at the start of
the output.wav.
   Where the syntax:
ecasound -i file.wav -y:2.0 -o output.wav
   will play file.wav 2seconds in, no silence gap in front. If you get what I
mean. I know it can get fuzzy around here.
   Kindest regards

Music was my first love and it will be my last (John Miles)

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Received on Fri Aug 1 16:15:02 2008

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