Re: channel manipulation

Hi Patrick!
   There's still a lot of redundancy.If you don'tneed any later processing, you 
can do this:
ecasound -f:16,6,48000 \
   -a:1,2,3 -i TEST_1-2.aif
   -a:1 -chmute:2 \
   -a:2 -chmute:1 \
   -a:3 -chmix:3 -chcopy:3,4 -chcopy:3,5 -chcopy:3,6 \
   -a:all -o test-out.wav
   If you need later processing for all the monomixdown channels (3-6), then:
ecasound -f:16,6,48000 \
   -a:1,2,3,4,5,6 -i TEST_1-2.aif
   -a:1 -chmute:2 \
   -a:2 -chmute:1 \
   -a:3 -chmix:3 \
   -a:4 -chmix:4 \
   -a:5 -chmix:5 \
   -a:6 -chmix:6 \
   -a:all -o test-out.wav

   This should work, no need for the loop devices. Or do you want to mix 
processed channel 1 and 2 of the original file, then, you might want:
ecasound -f:16,6,48000 \
   -a:1,2,3,4,5,6 -i TEST_1-2.aif
   -a:1 -chmute:2 \
   -a:2 -chmute:1 \
   -a:3 -chmix:3 \
   -a:4 -chmix:4 \
   -a:5 -chmute:2 \ (more here)
   -a:6 -chmute:1 \ (moere here too)
   -a:5,6 -o loop,1 \
   -a:7 -i loop,1 -chmix:5 -chcopy:5,6 \
   -a:all -o test-out.wav

   But perhaps at this stage, it would either really help, if you would offer 
us your specification or delve a little more into teh Ecasound chain concept 
and, the usage of loops and fixed it yourself. Since it gets rather 
complicated, well at least long and there's a lot of room for strange routing. 
Ecasound is rather flexible and we might go on routing into nirvana for quite 
some time. :-)
   Best wishes
          Julien

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http://juliencoder.de/nama/music.html

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