I’m doing some testing and research about beamforming on microphone array. And I’m wondering the wishbone bus is I2C or SPI? I didn’t find any documentation about that.
What’s more, when I did same testing experiments to MATRIX and try to find the phase delay between each microphone, the audio result is not the same. That’s why I’m thinking to kill all the unnessary process ran in the background. Do you have any idea about which process I can kill? (In other word, is there any other process running on MATRIX?)