[mythtv-users] cannot capture audio

[Nick]

On 16/11/05, RKVJ <rkvj at yahoo.com> wrote:
> Hi Mythtv-users,
>
> I'm trying to get mythtv up on an AMD64 machine that
> runs Fedora 4(32-bit OS, since I couldn't get mythtv
> to work on x86_64 version) and haven't had any luck in
> getting the buffered sound to work(record or
> playback). I'm using a 'Hauppauge WintvGo(uses bt878
> chipset)' for video capture and 'Creative sound
> blaster live value' for sound card. I use a patch
> cable to feed the output of the capture card to the
> sound card via its line-in.

Does your TV card support snd-bt8x8?

>
> There are several posts related to the issue but I
> couldn't find any resolution to the problem. The
> issues that I see are very similar to the one posted
> in the folloing thread
> -
> <http://www.gossamer-threads.com/lists/mythtv/users/144027?search_string=audio%20blaster%20live;#144027>
>
>
>
> Some information on my installation/hardware:
>
> I used Jarod Wilson's installation steps for guidance.
> mostly; referred to the mythtv website for
> troubleshooting tips.
>
> I tried the sound-test from the mythtv installation
> notes - fired-up xawtv, with the line-in on the
> sound-card muted and tried 'aplay /dev/dsp'; I do see
> the underrun messages such as :
>
> ---------------------------------------
> underrun!!! (at least 10.483 ms long)
> underrun!!! (at least 11.528 ms long)
> underrun!!! (at least 11.565 ms long)
> underrun!!! (at least 11.567 ms long)
> underrun!!! (at least 11.563 ms long)
> underrun!!! (at least 11.569 ms long)
> underrun!!! (at least 11.565 ms long)
>
> ---------------------------------------
>
> but do not hear any sound :(
>
> I can record tv, but only without the sound, which is
> probably because the audio-capture is not happening
> through /dev/dsp.

Have you monitored your sound mixer settings whilst playing TV and
making sure your line in is set up to record/muted and your ouput
devices are set to sufficient volume?

Nick