[Speex-dev] DC component coming back after AGC

[Aymeric Moizard]

Hi Jean-Marc & all,

I'm currently working on a wav file with very low volume.
This wav also contains a DC component.

Using testdenoise with modification (AGC turned on with
20000.0 value) I'm able to increase volume, but a new
irregular DC component appears again due to the AGC.
(seems to increase at the same time the AGC gain is increasing)

Using testdenoise again on the output, but without the
AGC, the preprocessor remove the newly introduced DC
component.

Note that the input has really low volume which is most
probably the main issue here. Still this is showing that
using the AGC potentially introduce DC component? Any
comment?

Tks,
Aymeric MOIZARD / ANTISIP
amsip - http://www.antisip.com
osip2 - http://www.osip.org
eXosip2 - http://savannah.nongnu.org/projects/exosip/