[mythtv-users] watching recording : sound but no voice

Guillaume Membré guillaume.ml at gmail.com
Sat Nov 14 00:28:11 UTC 2009


Hello

When playing recording with audio track with 6 channels, I just get
the sound (background music) but no voice. When playing recordings
with only 2 channels, it works
I only have 2 speakers (left / right) to my computer.
I look around with settings of alsa but can't find anything revelant.
Here is my setup :
hardware : zotac ion-c
soft : mythtv 0.22-fixes through r22772
Audio output device : ALSA:default
Passtrhough output device : Default
Max audio channel : Stereo
Upmix : Passive
Mixer Device : ALSA:default
mixer controls PCM

Any help will be greatly appreciated
Guilaume

Here is output of mythfrontend -v audio
2009-11-14 01:15:10.585 TV: Attempting to change from None to Watching
WatchingPreRecorded
2009-11-14 01:15:10.752 TV: StartPlayer(0, Watching
WatchingPreRecorded, main) -- begin
2009-11-14 01:15:11.166 [h264 @ 0x40f4cac0]mmco: unref short failure
2009-11-14 01:15:11.727 AFD: Opened codec 0xb7fd5b0, id(H264) type(Video)
2009-11-14 01:15:11.727 AFD: codec E-AC3 has 6 channels
2009-11-14 01:15:11.729 AFD: Opened codec 0xb7fdb40, id(E-AC3) type(Audio)
2009-11-14 01:15:11.729 AFD: Audio Track #1 is A/V stream #1 and has 6
channels in the French language(6713957).
2009-11-14 01:15:11.729 AFD: codec E-AC3 has 2 channels
2009-11-14 01:15:11.731 AFD: Opened codec 0xba9b660, id(E-AC3) type(Audio)
2009-11-14 01:15:11.731 AFD: Audio Track #2 is A/V stream #2 and has 2
channels in the Reserved for local use language(7430497).
2009-11-14 01:15:11.731 AFD: Opened codec 0xba9bdd0, id(DVB_SUBTITLE)
type(Subtitle)
2009-11-14 01:15:11.732 AFD: Opened codec 0xacd8260, id(DVB_SUBTITLE)
type(Subtitle)
2009-11-14 01:15:11.732 AFD: Trying to select audio track (w/lang)
2009-11-14 01:15:11.732 AFD: Selected track 1: French EAC3 5.1ch (A/V Stream #1)
2009-11-14 01:15:11.732 AFD: Initializing audio parms from audio track #1
2009-11-14 01:15:11.733 AFD: Audio format changed
                        from id(NONE)    -1Hz -1ch   0bps    ;
id(NONE)    -1Hz -1ch   0bps
                        to   id(E-AC3) 48000Hz  6ch  16bps    ;
id(E-AC3) 48000Hz  2ch  16bps
2009-11-14 01:15:11.739 AO: Killing AudioOutputDSP
2009-11-14 01:15:11.739 Opening audio device 'default'. ch 2(2) sr 48000
2009-11-14 01:15:11.740 Opening ALSA audio device 'default'.
2009-11-14 01:15:11.777 in SetParameters(format=2, channels=2,
rate=48000, buffer_time=400000, period_time=25000)
2009-11-14 01:15:11.780 get_buffer_size returned 8192
2009-11-14 01:15:11.781 set_period_time_near returned 21333
2009-11-14 01:15:11.781 get_period_size returned 1024
2009-11-14 01:15:11.803 Opening mixer default
2009-11-14 01:15:11.813 Setting Master volume to 70
2009-11-14 01:15:11.813 Volume range is 0 to 64, mult=1.5625
2009-11-14 01:15:11.814 channel 0 vol set to 45
2009-11-14 01:15:11.814 Volume range is 0 to 255, mult=0.392157
2009-11-14 01:15:11.815 Volume range is 0 to 255, mult=0.392157
2009-11-14 01:15:11.815 ALSA: channel 0 playback switch set to 1
2009-11-14 01:15:11.815 Setting Master volume to 70
2009-11-14 01:15:11.816 mixer unable to find control Master 1
2009-11-14 01:15:11.823 Setting PCM volume to 56
2009-11-14 01:15:11.824 Volume range is 0 to 255, mult=0.392157
2009-11-14 01:15:11.824 channel 0 vol set to 143
2009-11-14 01:15:11.825 Setting PCM volume to 56
2009-11-14 01:15:11.825 Volume range is 0 to 255, mult=0.392157
2009-11-14 01:15:11.825 channel 1 vol set to 143
2009-11-14 01:15:11.826 Volume range is 0 to 255, mult=0.392157
2009-11-14 01:15:11.826 Setting PCM volume to 56
2009-11-14 01:15:11.826 Volume range is 0 to 255, mult=0.392157
2009-11-14 01:15:11.827 channel 0 vol set to 143
2009-11-14 01:15:11.827 Setting PCM volume to 56
2009-11-14 01:15:11.827 Volume range is 0 to 255, mult=0.392157
2009-11-14 01:15:11.828 channel 1 vol set to 143
2009-11-14 01:15:11.828 AO: Audio fragment size: 6144
2009-11-14 01:15:11.839 AO: Audio Stretch Factor: 1
2009-11-14 01:15:11.839 Audio Codec Used: not set
2009-11-14 01:15:11.840 AO: kickoffOutputAudioLoop: pid = 20763
2009-11-14 01:15:11.840 AO: OutputAudioLoop: Play Event
2009-11-14 01:15:11.841 AO: Ending reconfigure
2009-11-14 01:15:11.841 AO: no change exiting
2009-11-14 01:15:12.058 AO: no change exiting
2009-11-14 01:15:12.059 AO: Pause 1
2009-11-14 01:15:12.060 AO: OutputAudioLoop: audio paused
2009-11-14 01:15:12.545 NVP(3): Forcing decode extra audio option on
(Video method requires it).
2009-11-14 01:15:12.558 OSD Theme Dimensions W: 640 H: 480
2009-11-14 01:15:12.693 Unknown font: descriptfont in textarea: description
2009-11-14 01:15:13.594 TV: StartPlayer(0, Watching
WatchingPreRecorded, main) -- end ok
2009-11-14 01:15:13.595 AO: Pause 1
2009-11-14 01:15:13.595 AO: OutputAudioLoop: audio paused
2009-11-14 01:15:13.596 TV: Changing from None to Watching WatchingPreRecorded
2009-11-14 01:15:13.607 The realtime priority setting is not enabled.
2009-11-14 01:15:13.680 [h264_vdpau @ 0x40f4cac0]mmco: unref short failure
2009-11-14 01:15:13.820 ScreenSaverX11Private: DPMS Deactivated 1
2009-11-14 01:15:13.890 Video timing method: USleep with busy wait
2009-11-14 01:15:13.891 AO: Pause 0
2009-11-14 01:15:13.892 AO: OutputAudioLoop: Play Event
2009-11-14 01:16:10.802 Marking recording as unwatched
2009-11-14 01:16:10.843 TV: Attempting to change from Watching
WatchingPreRecorded to None
2009-11-14 01:16:10.861 TV: Changing from Watching WatchingPreRecorded to None
2009-11-14 01:16:10.862 ScreenSaverX11Private: DPMS Reactivated 1
2009-11-14 01:16:11.119 AO: Killing AudioOutputDSP
2009-11-14 01:16:11.123 AO: OutputAudioLoop: Stop Event
2009-11-14 01:16:11.123 AO: kickoffOutputAudioLoop exiting


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