Hi,
We are seeing a problem on the audio recording generated by the TLV320AIC32x4 using a ported driver on the OMAP-L138 DVSDK 4_02_00_06
We observe that when recording a 1KHz test tone on an SD card or to a NFS folder that when it is played back the test tone is now 988Hz or around that value.
However when we redirect (i.e. arecord -f dat | aplay) the test tone back to the codec we do not see this shift behavior.
So my questions is:
> Why does storing the audio record to a storage media cause a test tone shift? And not when we redirect it?
Any insight is greatly appreciated.