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TLV320AIC3212: pop noise during start and stop playing

Part Number: TLV320AIC3212

Dear expert, 

While we are using TLV320AIC3212 playing sound, we found that there will be pop noise at the beginning and the end of playing.

We have set the register book0 page1 reg1f to 0xb9 (mute) but the pop sound still remain.

Will there be any other method to fix it?

Thank you.

Best Regards,