Re: [ecasound] Ecasound newbie - convert 4 channel to twin stereo

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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