[LAU] automatic gain control

[James Cameron]

I've been asked to look into making an autonomous sermon recording
device that will be attached to a monitor output of a front of house
public address system.

I'm probably going to write it in Python with either a gstreamer or ALSA
interface ... but getting to my question ...

... is anyone aware of an automatic input gain control filter that can
be applied, that will change the capture levels on the card, to ensure
that peaking is avoided yet a reasonable amount of signal is captured?

-- 
James Cameron
http://quozl.linux.org.au/