[alsa-devel] Artifacts present in AIC23 capture for 48 KHz sampling rate

[Aggarwal, Anuj]

Hi,

I am observing artifacts (sharp spikes at fixed intervals) while capturing audio on AM3517 EVM and AIC23 codec. They are present only in one of the channels when I am capturing at 48 KHz. All other sampling rates are working fine with the above said combination.

I have also attached the screenshot taken with the help of Audacity utility. Here, I tried recording silence but artifacts were observed on one channel.

Has anyone also observed the similar behavior with AIC23 codec? Any hints what could be the root cause?

Regards,
Anuj Aggarwal

-------------- next part --------------
A non-text attachment was scrubbed...
Name: audio_artifacts.PNG
Type: image/png
Size: 59313 bytes
Desc: audio_artifacts.PNG
Url : http://mailman.alsa-project.org/pipermail/alsa-devel/attachments/20091106/5e2b905c/attachment-0001.png