[mythtv-users] no audio with bt878

Tyler Whitney kc8nsb at gmail.com
Fri Aug 6 03:31:48 EDT 2004


Thanks man, i think i'm almost there!!!

i installed gnome-alsamixer and played around with the settings like
you said. Now when i run 'record'  i get values in the 2000-2500 range
(only three 'notches'). However, when i run mythtv all i get is a hum
still.

Thanks for your help

On Thu, 05 Aug 2004 19:03:28 -0700, Bruce Markey <bjm at lvcm.com> wrote:
> Tyler Whitney wrote:
> > i tryed turning up the volume on my capture slider and i think i'm
> > making progress...instead of no noise i just get static with clicks.
> > I tryed turning the volume down but it still happens.
> >
> > Any suggestions?
> 
> Well, you can plug headphones or speakers directly into the
> audio out of the tuner card to be sure that there is sound there
> but thats probably okay if if you hear sound with xawtv. Plug
> the patch cable back in from the tuner card audio out to the
> sound card line in. If you plug into AUX or Mic, then you need
> to use the AUX or Mic as the item to select for CAPTUR.
> 
> Gerd wrote a tool called "record" that is included with xawtv.
> If you have the capture device set correctly and run "record"
> you should see ascii level meters that show the right and left
> record levels.
> 
> Other things to look for: some ALSA dirvers have a "Line" and
> a "Line-in" that are two different things. Try them both. Some
> drivers like SoundBlaster Live! have other "Capture" sliders
> that need to be turned up also such as "Wave Cap", "AC97 Cap",
> etc. Turn these up. If it then works, turn them down one at a
> time to find out which ones matter and which ones don't.
> 
> --  bjm
> 
>                        CAPTUR      CAPTUR
>   +--+        +--+     L+MM+R      L+--+R
>   |  |        |  |      |  |        |  |
>   |  |        |  |      |  |        |  |
>   |##|        |##|      |  |        |##|
>   |##|        |##|      |  |        |##|
>   |##|        |##|      |  |        |##|
>   |##|        |##|      |  |        |##|
>   |##|        |##|      |  |        |##|
>   |##|        |##|      |  |        |##|
>   |##|        |##|      |  |        |##|
>   |##|        |##|      |  |        |##|
>   +--+        +--+      +--+        +--+
> Master  ...  PCM  ...  Line  ... <Capture>
> 
> 
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