[mythtv] One TV station without audio, the rest work.

[Greg Grotsky]

I've had this problem for a few months now.  One out of 10 of my TV stations
has no audio.  I can watch it with my TV's built in tuner and the audio
works, I can also use the "azap -r" with mplayer and the audio works there
too.  I did a "mythfrontend -v audio", this is the output:

2007-02-10 11:19:49.133 TV: Attempting to change from None to WatchingLiveTV
2007-02-10 11:19:49.136 Using protocol version 32
2007-02-10 11:19:49.488 NVP: Disabling Audio, params(-1,2,44100)
2007-02-10 11:19: 49.491 VideoOutputXv: XvMCTex: Init failed
2007-02-10 11:19:49.492 VideoOutputXv: XVideo Adaptor Name: 'NV17 Video
Overlay'
2007-02-10 11:19:50.205 TV: Changing from None to WatchingLiveTV
2007-02-10 11:19: 50.213 Realtime priority would require SUID as root.
2007-02-10 11:19:50.370 Video timing method: SGI OpenGL
2007-02-10 11:19:53.598 NVP: Prebuffer wait timed out 10 times.
2007-02-10 11:19:54.756 VideoOutputXv: XvMCTex: Init failed
2007-02-10 11:19:54.761 VideoOutputXv: XVideo Adaptor Name: 'NV17 Video
Overlay'
2007-02-10 11:19:55.412 AFD: Opened codec 0x27c23b0, id(MPEG2VIDEO)
type(Video)
2007-02-10 11:19:55.413 AFD: Opened codec 0x27dfca0, id(AC3) type(Audio)
2007-02-10 11:19:55.413 AFD: Audio Track #1 is A/V stream #1 and has 0
channels in the English language(6647399).
2007-02-10 11:19:55.415 AFD: Opened codec 0x27f8560, id(MPEG2VIDEO)
type(Video)
2007-02-10 11:19: 55.416 AFD: Opened codec 0xd26470, id(MPEG2VIDEO)
type(Video)
2007-02-10 11:19:55.422 AFD: Selected track 1: English AC3 ?ch (A/V Stream
#1)
2007-02-10 11:19:55.422 AFD: Initializing audio parms from audio track #1
2007-02-10 11:19:55.423 AFD: Audio format changed
                        from id(NONE)    -1Hz -1ch   0bps    ; id(NONE)
-1Hz -1ch   0bps
                        to   id( AC3)     0Hz  0ch   0bps    ; id( AC3)
0Hz  0ch   0bps
2007-02-10 11:19:55.423 NVP: Disabling Audio, params(0,0,0)
2007-02-10 11:19:56.755 NVP: prebuffering pause
2007-02-10 11:19:57.165 TV: Attempting to change from WatchingLiveTV to None
2007-02-10 11:19:57.652 TV: Changing from WatchingLiveTV to None
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