Exactly, this sounds like when I was sending left-aligned serial audio instead of I2S format from ice1724 to the codec. Low volumes were OK, higner distorted.
Pavel.
------------ Původní zpráva ------------ Od: Liam Girdwood lg@opensource.wolfsonmicro.com Předmět: Re: [alsa-devel] Query regarding sampling rates etc Datum: 10.7.2007 23:18:21
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.
Liam
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