[LAU] Inverse Phase in ALSA POSSIBLE ?

[bricolodu]

Hello,

I want to deliver to my DAC two mono signals out of phase.
I did the following asound.conf (PS I'm also using jack for convolution)

/# Send alsa API to jconvolver
pcm.rawjack {
    type jack
    playback_ports {
        0 jconvolver:in.L
        1 jconvolver:in.R
        }
    capture_ports {
        0 system:Output_L
        1 system:Output_R
        }
}
# jackplug
pcm.jack {
    type plug
    slave { pcm "rawjack" }
    hint {
  description "JACK Audio Connection Kit"
    }
}
# use following peripherical by defaut with alsa:
pcm.!default {
    type plug
    slave { pcm "rawjack" }
    slave.channels 2
    ttable.0.0 0.6
    ttable.1.0 0.6
    ttable.0.1 -0.6
    ttable.1.1 -0.6
}
/

Do you think it is working the way I want ?
I have the feeling that although I get sound from both channels they aren't
out of phase.

Thank you for your comments/solution.

Best regards,
Jean



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