Re: [ecasound] Mixing Audio Clips

From: Julien Claassen <>
Date: Tue Jul 03 2007 - 13:01:02 EEST

Hi Keith!
  If you consider just using ecasound, I mean not writing your own ecatool for
it, then I suppose it's rather simple.
  You have an instructional file ins.wav and from that you'd like to take
audio material from position 5s to 10s, and later from 15s to 18s, then you'd
do this:
1. Best create your snippets first:
ecasound -i ins.wav -y:5.000 -o ins1.wav -t:5.000
ecasound -i ins.wav -y:15.000 -o ins2.wav -t:3.000
  (-y gives start position in seconds, -t gives processing time in seconds)
  then use your favourite editor to create two files like e.g. this:
vim ins1.ewf
source = ins1.wav
offset = 8.000

vim ins2.ewf
source = ins2.wav
offset = 18.000

  This means the audio-snippets will appear at position 8s and 18s in you
final track. Now you mix them like this:
ecasound -a:1 -i music.wav -a:2 -i ins1.ewf -a:3 -i ins2.ewf -a:all -o
  Of course you may optionally use -ea after each input to correct relative
volume of the tracks.
  I hope that helps!
  Kindest regards

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

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Received on Tue Jul 3 16:15:02 2007

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