[alsa-devel] Getting the actual HW sample rate

Raymond Toy rtoy at google.com
Mon Sep 12 19:54:55 CEST 2011

On Thu, Sep 8, 2011 at 1:10 AM, Clemens Ladisch <clemens at ladisch.de> wrote:

> Raymond Toy wrote:
> > In my application, we want ... to avoid yet another sample rate
> > conversion when playing out the audio.
> Add the SND_PCM_NO_AUTO_RESAMPLE flag when calling snd_pcm_open, or use
> snd_pcm_hw_params_set_rate_resample.
Some further experimentation with this has confused me.  I changed the
sample code to call snd_pcm_hw_params_set_rate_resample with resample = 0.

When I run the code without an .asoundrc (defaulting to pulse audio, I
think), I get sample rrates : 1-192000.

Is that right?


More information about the Alsa-devel mailing list