[alsa-devel] Query regarding sampling rates etc

Liam Girdwood lg at opensource.wolfsonmicro.com
Tue Jul 10 23:18:08 CEST 2007

On Tue, 2007-07-10 at 19:32 +0530, Pharaoh . wrote:
> Hi,
> This is a very vague question, just thought of asking it after hours of
> debugging.
> I am testing my alsa driver, written for omap 730/850 based board. I am
> testing it by using aplay.
> Despite checking clocks, sampling rates etc many times and after doing many
> combinations thereof, I cant hear anything more than a noise which changes
> and becomes more like the original .wav file as I change various params like
> sampling rates/clocks etc. It becomes close to the actual thing, but not
> better.
> Any idea what are the params I should be tweaking? I know this is h/w
> dependent.

Sounds like (no pun intended) your digital audio interface is not set up
correctly between your codec and CPU.  It's probably best to make sure
they are both using the same I2S or PCM modes.


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