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Re: How to debug microphone?

On Sun, 24 Apr 2011 09:40:49 +0200, Felix Natter writes:
> I'd like to use my microphone, but when I use gnome-sound-recorder, and
> - select "Record from input: Front Mic" it doesn't record anything.
> - select "Record from input: Line In" and attach a headset to the 3.5mm
>   mic input (Laptop) it doesn't record anything.
> Audio play works fine in all applications.
> I am running Debian Lenny. How can I debug this?

The steps I would recommend are as follows.

1) Make sure with alsamixer that mics are not muted.

2) Start arecord with vumeter enabled, that is,

     arecord -V /tmp/foo.wav

   and see if vumeter changes.

3) On failure, go to (1).


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