2MIC audio with android things

[Felix_Zhang]

The solution is based on android things to realize google assistant & cast, need to connect 2MIC signal & 2 AEC signal to MPU. Is the connection in the sch right? 

1.Is it right to use SAI3 for  4 channel ADC signal input?

2.Is it right to use SAI1 for  speaker signal output?

3.Does PICO-PI-IMX7 support TDM format?

[igorpadykov]

Hi felix

1. yes

2. yes

3. I am not familiar with PICO-PI-IMX7 board, but its processor SAI

    supports TDM format. Regarding software support, it can be posted on vendor

    support: Support - TechNexion 

Best regards
igor
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