Orange Pi Zero Audio output with kernel NEXT

[geotravel]

 

When I have to use Jessie version dev with kernel NEXT 4.13.5. The alsamixer have different options to setup audio compare to ARMBian with stable kernel 3.x

 

 

 

 

I must switch on DAC Reversed to have audio output in speakers. I don't know it is correct but works for me. The input mic is very sensitive and must be lower value to have good quality sound 

 

I don't know why is displayed option for MIC2 , the orange pi zero has only one microphone input 

 

 

[martinayotte]

4 hours ago, geotravel said:

I don't know why is displayed option for MIC2

That because the H3 SoC itself has 2 ADC ...

[geotravel]

Thank you for info, it is no problem for Orange Pi Zero

but you know what is DAC Reversed ???

[martinayotte]

Nope, but it is probably explained somewhere in the SoC datasheet and/or in kernel driver sources ...

 

[geotravel]

Ok I will try to find what is DAC Reversed it maybe I understand why this option ON give me audio output in speakers :-)