ADAU1761 ADC HP Filter taking too long to settle.

Just another piece of information:

I am also using an externally connected analog microphone. The system can be configured to use either the analog microphone or the MEMS microphone. With the file I attached to the previous post minus the HPF setting and the DC blocking filter, I measured an almost zero bias on the analog microphone while getting the 10200 value for the bias for the MEMS microphone. With the HPF enabled, I was getting a bias of -9800 on the analog microphone although it started out as a much smaller value and just continued to grow in the negative direction.

This behavior is similar to the MEMS microphone except the bias starts out as a small negative value which gradually decreased in value for the analog microphone and for the MEMS microphone, the bias starts out as a large positive value that gradually shrinks. In both cases, the value is decreasing and the magnitude of the change in bias is comparable.

Just another piece of information:

I am also using an externally connected analog microphone. The system can be configured to use either the analog microphone or the MEMS microphone. With the file I attached to the previous post minus the HPF setting and the DC blocking filter, I measured an almost zero bias on the analog microphone while getting the 10200 value for the bias for the MEMS microphone. With the HPF enabled, I was getting a bias of -9800 on the analog microphone although it started out as a much smaller value and just continued to grow in the negative direction.

This behavior is similar to the MEMS microphone except the bias starts out as a small negative value which gradually decreased in value for the analog microphone and for the MEMS microphone, the bias starts out as a large positive value that gradually shrinks. In both cases, the value is decreasing and the magnitude of the change in bias is comparable.