I am currently working the evaluation module for the audio codec. I have a lapel microphone (TRRS plug type) connected to the MIC_IN. However I am unable to record. I have enabled the recording configuration from the Codec control software menu. My experimental setup is as follows, the lapel mic is connected to the MIC_IN as mentioned above. Further I have enabled listen to this device in the Windows (Sounds menu) as a way of quick debug/verifying that the mic works.
With the same experimental setup as above, I used a different mic (TRRS plug as well) which is part of a headphone. In this case, the mic seemed to work as I could whatever I fed to the mic via the playback option enabled on windows. although with a lot of noise. (Noise here being a clicking/buzzing noise occurring periodically). I would like to have some guidance on how I could troubleshoot this issue and why only one mic works even though both are of the same type.