[Alsa-user] Too quiet microphone M-Audio revolution

[<ed....@er...>]

Hello everyone.

I am using alsa 1.0.14 with an M-Audio revolution 7.1 (ice1724) and
everything seems to work fine, but there is one little issue, the
microphone is too quiet.

I can record without problems on suites like Audacity and Krec, to later
amplify the sound, but that is not suitable for Ekiga or other telephony
and VoIP programs, because I literally need to shout to be heard.

I googled several hours looking for a workaround, without any luck. In
other soundcards seem to be some microphone boost option, but not for
this one, and because I'm completely new with alsa I do not know what to
do, because ideally I need to boost that channel on about 35dB, or the
maximum below that I can get.

I think I've read somewhere that .asoundrc or asound.state could be
modified to set up audio filters, but I was not able to find any
.asoundrc file.

Can anyone help me?

Thanks in advance.