advice for creating special ALSA driver or plugin
11 Apr
2021
11 Apr
'21
6:01 p.m.
Hi ALSA developers.
I'm completely new to ALSA developing, so I'm being lazy and ask for advices.
I have a USB recording device for four 16bit/48Khz channels, "encoded" in a stereo 16bit/96Khz track; because it is a USB audio recording device, so no special recording software is required, but a (proprietary Windows) converting software is provided (that I can't use).
Output channels are alternated at the sample level: L: 1313131313, R: 2424242424, etc...
So basically the driver/plugin would alternates between input samples of a stereo track to output 4 channels (at half the input sample rate).
Is there a code base I could study and adapt to start my simple project?
Thanks for your attention.
Marc
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Marc Lavallée