Hi ADI Expert,
When I use Micphone and ADAU1961 to record voice, I found there's noise can be recorded as attachment (test1.wav).
Even I disconnect micphone and ADAU1961, the noise is still there and can be record and heard.
This noise will become smaller if I changed change cap at LINP/LINN from 0.1uF to 10uF as datasheet reference schematic.
I would like to ask whether there's any thing I can change to minimize this noise? thanks very much!