Other Parts Discussed in Thread: AM5728
I have an AM5728 EVM which has tlv320aic3104 audiocodec. It is booted in Linux.
When I record my voice using the arecord command, I get some noise along with my voice. I have tried to change Line PGA gain. But there but there is always some noise for every Line PGA gain value that I set. More the Line PGA gain more is the noise recorded and vice versa.
What can I do to remove the noise altogether ? Can anyone suggest any other parameters that I have to change to reduce noise ?
Is there something to be done in the device driver of tlv320aic3104 audiocodec?
Also, please note that the EVM gives no noise (negligible) in mic record output when booted in android.