Robert Bielik wrote:
> It works nicely if I either:
> 3. Pipe capture -> playback with a larger buffer size, such as 64.
It's possible that the hardware does not actually handles size 32 correctly.
> The rendering thread is (pseudo code):
>
> while (true) {
> if(capture_active) {
> snd_pcm_wait(capture_handle, timeout);
> read_pcm_data_into_buffer(capture_handle, input_buffer);
> }
> do_callback(input_buffer, output_buffer);
> if (playback_active) {
> snd_pcm_wait(playback_handle, timeout);
> write_pcm_data_from_buffer(playback_handle, output_buffer);
> }
> }
Are you filling the output before the loop?
Regards,
Clemens
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