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

[Sergei S. <ste...@li...>]

On Thu, 14 Jun 2007 14:25:18 +0200
Eduardo Garc=C3=ADa <ed....@er...> wrote:

> Hello everyone.
>=20
> 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.
>=20
> 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.
>=20
> 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.
>=20
> 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.
>=20
> Can anyone help me?
>=20
> Thanks in advance.
>=20
>=20
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>=20

I own the same card, though currently it is not installed.

I used it a lot to talk using Skype, and microphone volume was OK.

Please note that the card does not have capture gain control, i.e. it
doesn't have it in hardware.

Try it with Skype - using its 'echo123' "user" which records and then plays
back you voice you can hear your voice the way the other side hears it.

Also, check the type of your microphone. I have a gradient one which
suppresses well ambient noise.

But to use such a microphone you have to hold it only 1-2cm away from your
mouth.

--Sergei.