[Alsa-user] How to disable AGC for HDA Intel / Realtek ALC880

[Eugen <eug...@ya...>]

Hello,

Can you please tell me how can I disable automatic gain control (mic &
line in) for the following configuration? Probably I should add
something to /var/lib/alsa/asound.state or modify mingain/maxgain?

I need to disable AGC / any other effects and get a stable gain, right
now the gain varies continously and the AGC is unstable with a lot of
"pumping".

$ uname -a
Linux mx1 3.12-0.bpo.1-686-pae #1 SMP Debian 3.12.9-1~bpo70+1
(2014-02-07) i686 GNU/Linux alsa 1.0.25
Audio device: Intel Corporation NM10/ICH7 Family High Definition Audio
Controller (rev 02) Card: HDA Intel
Chip: Realtek ALC880

TIA