[mythtv-users] MythTV 0.24-1.80 - No sound on HD TV recording

John Pilkington J.Pilk at tesco.net
Mon Apr 23 21:07:27 UTC 2012


On 23/04/12 19:51, PJR wrote:
> I recorded 'The Italian Job' from ITV HD the other day and when I play
> it there's sound from the TV broadcast prior to the movie but as soon as
> it starts there's no sound what so ever. This despite my AV amp
> (connected to the mythbox by HDMI) showing it's receiving 5.1 sound but
> no sound out of the speakers.  All other HD TV recordings playback sound
> in the appropriate number of channels.  Any thoughts as to what's gone
> wrong?   Setting or un-setting Dolby, DTS etc in mythfrontend makes no
> difference. The TV decoder is a PC nano Stick 290e which has worked
> without fault.

vlc hung up when asked to play my recording but was fine after I chopped 
off the beginning.  There isn't any sound anyway until the initial pan 
down gets to the viaduct.

ffmpeg -i on the chopped file says:
     Stream #0:0[0x12d]: Video: h264 (High) ([27][0][0][0] / 0x001B), 
yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], 29.17 fps, 50 tbr, 90k tbn, 50 tbc
     Stream #0:1[0x12e](eng): Audio: aac_latm ([17][0][0][0] / 0x0011), 
48000 Hz, 5.1, s16
     Stream #0:2[0x132](eng): Audio: aac_latm ([17][0][0][0] / 0x0011), 
48000 Hz, 2 channels (FC), s16 (visual impaired)
     Stream #0:3[0x131](eng): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006)





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