Multirate Processing ASRC Signal Level Differences

Dear Team,

We are using two Evaluation Boards ADAU1466 , one as ADAU1466 Master and the other as ADAU1466 Slave.

Below is the overview of what we are trying to do :

We wanted to know if the -2dB drop in amplitude level is expected when adding two signals one from ASRC (sample rate converted from 48 to 192 Fs) and Serial Input (already 192 Fs)

I have attached the Code for your reference. Multirate.zip

Regards,

Zayn

Audio Signal Processors

hardware

SigmaDSP Audio Processors

adau1466