Re: Capturing audio with mencoder and alsa

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Clemens Ladisch responded to my request for help in getting
mencoder to record sound:
Me:
> I have an abit av8 MB running slackware 10.1 (just build a
> new 2.6.18 kernel for it).  I am using the built-in
> VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio
> controller.

 I thank him for his interest.  He asked
for more clarification
Ladisch:
>So I guess the TV card is connected to the CD input on your
>motherboard?
Yes.  I have a choice of CD input or AUX2.  I used CD for what you might call historical reasons.  I could also use an audio cable
wrapped around from the external audio out of the TV card to
the external input of sound, but I use LINE-IN on the audio for
other things.
Me:
> I haven?t
> figured out how to actually switch on capture in alsamixer),

Ladisch:
>Press Space when the input is selected.


I have tried that.  Thinking about it overnight, I suspect that
somehow the driver in alsa cannot detect the CD as input.
It´s as though it knows it´s there, but doesn´t believe it can
be used as input, so when one issues the command, it refuses
it.  When I bring up alsamixer, and use F4 to look at CAPTURE,
it shows CD as capture but with zero volume, and it will not
increase the volume.  There is a whole separate column,
labeled capture, and there I can increase the volume.


>Please show the output of "amixer contents".
>
>
>Regards,
>Clemens
See the attached, and thanks again -Carl


Attachment: amixer.contents.output
Description: Binary data

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