Stefan Sauer wrote:
> I am working with an I2S based hat for the raspberry pi.
> Due to the protocol the chip always plays/record stereo. Now I'd like to
> configure alsa in a way to just simply duplicate channels when playing a
> mono file.
This happens automatically when you're using the "plughw" or "default"
devices.
> The main issue is that I still can't play mono files.
>
> Playing WAVE '/tmp/tmpel6bu774.wav' : Signed 16 bit Little Endian, Rate 22050 Hz, Mono
> aplay: set_params:1297: Unable to install hw params:
How did you invoke aplay?
> how would I configure separate ttables depening on the number of input channels.
This is not possible.
> what does cchannel stands for?
"c" stands for some word that is not "slave".
> ctl.!default {
> type plug
This is not possible for ctl devices.
Regards,
Clemens
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