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

Aggarwal, Anuj anuj.aggarwal at ti.com
Fri Nov 6 13:57:54 CET 2009


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 on what could be the root cause? 

Anuj Aggarwal

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