So the arecord (and aplay for this matter)'s pointer callback? The writing ALSA driver user guide says *This callback is called when the PCM middle layer inquires the current hardware position on the buffer. The position must be returned in frames, ranging from 0 to buffer_size - 1. This is called usually from the buffer-update routine in the pcm middle layer, which is invoked when snd_pcm_period_elapsed() is called in the interrupt routine. Then the pcm middle layer updates the position and calculates the available space, and wakes up the sleeping poll threads, etc.* "Returned in frames". Does this mean returned in MAX_CHANNELS frames? On Fri, Sep 2, 2016 at 12:09 AM, Clemens Ladisch <clemens@xxxxxxxxxx> wrote: > Rob Nertney wrote: > > I just changed my channels to half of MAX_CHANNELS, and when i play the > resulting WAV file, my voice is super slow (50% slower, I'd wager) > > This sounds like a bug in your driver. > > > Regards, > Clemens > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
