Additional Subwoofer output channel with master channel mix

Registered by Hans-Jörg Schabel on 2016-02-11

Additional Subwoofer output channel (lowpass-filter from master channel) in the menu Optionen->Einstellungen->Sound-Hardware->Ausgang
Parameters: separation frequency (e.g. 50-150Hz), mono/stereo, sound output channel (1-2), optional: lower cut-off frequency (0-50Hz)

NO CHANGE OF MASTER CHANNEL OUTPUT !!
Optional: Switchable Highpass filter for Master Channel Output with the same separation frequency as Subwoofer lowpass filter.

I configured sound a subwoofer output in the ALSA .asoundrc. Nevertheless, it doesn't work with paralell input channels(inacceptable high latency at input channels).
The option would fit perfect to my setup. It would be great, to have an separate output for a Subwoofer Amplifier. No more need for an additional hardware low pass filter.

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Drafter:
Hans-Jörg Schabel
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New
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