Re: Ecasound newbie - convert 4 channel to twin stereo

Joel Roth <[email protected]> Sat, 28 Jul 2018 08:51:23 -1000
Newsgroups gmane.comp.audio.ecasound.general
Message-ID <20180728185123.zrxyqyy7srb72i2t@sprite>
Andrew Ferguson wrote:
> I tried the following command, based upon the original command from the
> plugin page and the ecasound documentation for multitrack usage:
> 
>    ecasound -a:1,2 -x -i sq-test-tones.m4a -el:hilbert_stereo_200taps
>    -el:sq_decoder_shadow_vector -a:1 -f:16,2,44100 -o front.wav -a:2
>    -f:16,2,44100 -o back.wav -chcopy:3,1 -chcopy:4,2
> 
> unfortunately, this gives the error "Exactly one chain should be selected
> when adding chain operators". 

Hi Andrew,

Try this (not tested)

   ecasound \
	-a:in -i:sq-test-tones.m4a -el:hilbert_stereo_200taps -el:sq_decoder_shadow_vector -o:loop,in \
	-a:1,2 -i:loop,in  \
	-f:16,2,44100  \
    -a:1  -o front.wav \
	-a:2  -chcopy:3,1 -chcopy:4,2 -o back.wav 




-- 
Joel Roth
  


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