AnsweredAssumed Answered

Chnage ADV7611 output audio sampling rate

Question asked by deva on Jun 3, 2015
Latest reply on Aug 18, 2017 by sjyalj@163.com

Hi All,

 

We are using ADV7611 in our project. On our board we are using audio pins AP, LRCLK, SCLK. We are using ALSA drive to capture the

audio from ADV7611 and then we are encoding it. The code is working fine when sampling rate is 48 KHz.

 

Now, we have requirement to change the the sampling rate of audio in our application . For this to try out we have changed the sample rate to 32 KHz for capture and encoding part in our application. But the audio data being received from ADV7611 are of 48 KHz sampling rate (checked using the HDMI Map,register 0x39 ) and because of that (Correct me if I am wrong) the final encoded audio data are getting distorted. We tried to find register for ADV7611 to change the output audio sampling rate but couldn't find it.

 

Is it possible in ADV7611 to change output sampling rate for audio ?

 

 

Regard,

Dev

Outcomes