From: Jacob Meuser (jakemsrsdf.lonestar.org)
Date: Wed Aug 01 2007 - 22:20:04 CDT

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On Thu, Aug 02, 2007 at 04:57:32AM +0200, sebastian.rotherjpberlin.de wrote:
> Hello everybody,
>
> I tried to configure a microphone on OpenBSD 4.1 but it seems I'm too dumb
> to get it working.

>
> I've read the FAQ (well the manpages where not that helpfull about it) and
> configured the settings like descriped:
>
> inputs.mic.mute=on
> inputs.mic.preamp=on
> inputs.mic.source=mic0
> record.source=mic
> record.volume=255,255
> record.volume.mute=off
> record.mic=0
> record.mic.mute=off

you muted the mic input? usually you can mute an input and still
recdord it. I think whether this really works is somewhat hardware/
driver dependent. at any rate, unmute this until you get something,
then try muting it.

probably record.mic should not be 0. that looks like a monoaural
volume control.

> All I get if I do dd if=/dev/audio of=myvoice.raw is some scrambled sound.
> Sounds like the background noise on every Audiodevice just much louder.
>
> I'm sure I miss something but I don't figure out what it is.

well, the auvia devices I have don't record at all. most likely there
is just some input switched with some output, since I have to plug
my speakers into the mic jack to get audio. still haven't figured that
out yet.

anyway, if the above suggestions don't help, I would also suggest
trying a different encoding, like slinear_le and using /dev/sound
instead of /dev/audio. mulaw is emulated on auvia.

--
jakemsrsdf.lonestar.org
SDF Public Access UNIX System - http://sdf.lonestar.org

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