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<TITLE> [Mageia-discuss] audio recording (from Line In) doesn't work in Mageia 2
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<H1>[Mageia-discuss] audio recording (from Line In) doesn't work in Mageia 2</H1>
<B>David Walser</B>
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TITLE="[Mageia-discuss] audio recording (from Line In) doesn't work in Mageia 2">luigiwalser at yahoo.com
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<I>Sat Dec 29 20:07:23 CET 2012</I>
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<PRE>David Walser wrote:
><i> Christiaan Welvaart wrote:
</I>>><i> On Sat, 29 Dec 2012, David Walser wrote:
</I>>><i>
</I>>>><i> I have an ATI TV Wonder VE video card which doesn't handle audio
</I>>>><i> internally, it just pipes it out a 1/8" audio cable which you plug into
</I>>>><i> the Line In input in the sound card, and you record the audio from that.
</I>>>><i> For years, I've been using the script below to record TV from it. The
</I>>>><i> aumix command sets the IGain mixer channel, which controls the volume of
</I>>>><i> the audio that gets recorded. Up through Mageia 1, this worked fine.
</I>>>><i> Now in Mageia 2, I get no sound.
</I>>>><i>
</I>>>><i> aumix -i 60
</I>>>><i> mencoder -tv driver=v4l2:width=640:height=480:adevice=/dev/dsp:norm=ntsc:input=0 <A HREF="tv://">tv://</A> -o tv.avi -oac mp3lame -ovc lavc -lavcopts
</I>><i> acodec=libmp3lame:abitrate=64:vbitrate=1800:vhq -lameopts vbr=3:br=64 -srate 44100 -vf crop=608:456:14:10 > /dev/null 2>&1
</I>>>><i> aumix -i 0
</I>>><i>
</I>>><i> Well all kinds of things can be wrong. Does the TV card output sound?
</I>><i>
</I>><i> The TV card is fine, all that's changed is upgrading to mga2.
</I>><i>
</I>>><i> Maybe the input selector of the sound card is set to microphone.
</I>><i>
</I>><i> How would you check/change that? Why would it get messed up all of a sudden?
</I>><i>
</I>>><i> Why are you using OSS instead of alsa directly?
</I>><i>
</I>><i> That's what mencoder uses. It should work fine.
</I>
I tried changing adevice=/dev/dsp to the following things, which all also didn't work:
alsa:adevice=hw.0,0
alsa:adevice=hw.0,1
alsa:adevice=hw.0,2
Here are the sound and TV devices from lspcidrake. This is smelling like a kernel bug to me.
snd_hda_intel : Intel Corporation|82801JI (ICH10 Family) HD Audio Controller
bt878 : Brooktree Corporation|Bt878 Audio Capture [MULTIMEDIA_OTHER] (rev: 11)
bttv : Brooktree Corporation|Bt878 Video Capture [MULTIMEDIA_VIDEO] (rev: 11)
>><i> Try to get things working with alsamixer if aumix doesn't work...
</I>><i>
</I>><i> aumix seems to be working fine, it still sees the IGain channel and can set it just fine. I think something else is wrong.
</I>
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