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 

 

 

4 hours ago, geotravel said:

I don't know why is displayed option for MIC2

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

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

but you know what is DAC Reversed ???

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

 

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