[alsa-devel] Wonder if VT1708A has Mic Boost or not

Hi Folks!

I have a mini-PC here which should record Voice over Microphone. The Level is not really loud enough and the alsa-driver-1.0.19 doesn't reveal a mic boost setting in its mixer.

This of course may be of the driver not yet being adapted to the special motherboard AFAIK.

What I wonder is, is the Mic Boost setting/function integrated in this chip itself or does hardware vendor need to implement external opamps for this? If it is integrated into the chip itself I could try to modifiy the code to make the setting public.

Is there a source for a datasheet anywhere for the VT1708A?

King regards, Konsti