[mythtv-users] Audio pitch and studder

[luitjens at cs.utah.edu]

Hi,  after a bit more of experimenting I have determined that the entire 
recording is faster (thus the pitch is higher).  It is not a playback 
issue but instead it is actually in the recording.  However if I capture 
straight from /dev/video0 the speed is normal.  If i play one of the 
recordings from myth in mplayer it is also fast. 

It seems like some setting in myth is making ivtv record at a different 
rate.  Anyone have any ideas?

Thanks

luitjens at cs.utah.edu wrote:
> The frontend is spewing a lot of information here is a bit of it:
>
> [mpeg2video @ 0x2de3724]ac-tex damaged at 2 20
> [mpeg2video @ 0x2de3724]slice mismatch
> [mpeg2video @ 0x2de3724]ac-tex damaged at 38 4
> [mpeg2video @ 0x2de3724]00 motion_type at 29 8
> [mpeg2video @ 0x2de3724]00 motion_type at 20 15
> 2007-04-30 18:25:55.884 NVP: prebuffering pause
> [mpeg2video @ 0x2de3724]ac-tex damaged at 43 9
> [mpeg2video @ 0x2de3724]ac-tex damaged at 4 10
> [mpeg2video @ 0x2de3724]invalid mb type in B Frame at 7 20
> [mpeg2video @ 0x2de3724]00 motion_type at 44 19
> [mpeg2video @ 0x2de3724]ac-tex damaged at 29 12
> [mpeg2video @ 0x2de3724]mb incr damaged
> [mpeg2video @ 0x2de3724]00 motion_type at 23 21
> [mpeg2video @ 0x2de3724]ac-tex damaged at 35 0
> 2007-04-30 18:25:59.654 NVP: prebuffering pause
> [mpeg2video @ 0x2de3724]00 motion_type at 13 18
> [mpeg2video @ 0x2de3724]invalid mb type in B Frame at 43 11
> [mpeg2video @ 0x2de3724]00 motion_type at 32 13
> [mpeg2video @ 0x2de3724]ac-tex damaged at 4 22
> [mpeg2video @ 0x2de3724]ac-tex damaged at 31 27
> [mpeg2video @ 0x2de3724]00 motion_type at 39 22
> [mpeg2video @ 0x2de3724]00 motion_type at 43 21
> [mpeg2video @ 0x2de3724]ac-tex damaged at 44 3
> [mpeg2video @ 0x2de3724]00 motion_type at 19 18
> 2007-04-30 18:26:02.062 NVP: prebuffering pause
> [mpeg2video @ 0x2de3724]ac-tex damaged at 19 16
> [mpeg2video @ 0x2de3724]00 motion_type at 8 9
> [mpeg2video @ 0x2de3724]00 motion_type at 10 23
> [mpeg2video @ 0x2de3724]ac-tex damaged at 44 18
> [mpeg2video @ 0x2de3724]00 motion_type at 39 9
> 2007-04-30 18:26:05.385 NVP: prebuffering pause
> [mpeg2video @ 0x2de3724]ac-tex damaged at 15 9
> [mpeg2video @ 0x2de3724]00 motion_type at 18 4
> [mpeg2video @ 0x2de3724]ac-tex damaged at 24 6
> [mpeg2video @ 0x2de3724]ac-tex damaged at 8 20
> [mpeg2video @ 0x2de3724]00 motion_type at 24 21
> [mpeg2video @ 0x2de3724]00 motion_type at 7 18
> [mpeg2video @ 0x2de3724]00 motion_type at 9 14
> [mpeg2video @ 0x2de3724]00 motion_type at 12 4
> [mpeg2video @ 0x2de3724]ac-tex damaged at 43 26
> [mpeg2video @ 0x2de3724]00 motion_type at 8 14
> 2007-04-30 18:26:09.763 NVP: prebuffering pause
> [mpeg2video @ 0x2de3724]00 motion_type at 12 20
> [mpeg2video @ 0x2de3724]slice mismatch
> [mpeg2video @ 0x2de3724]invalid cbp at 20 17
>
> If anyone has any ideas of what I could do to fix this I would be 
> greatfull.
> Thanks
>
>
> luitjens at cs.utah.edu wrote:
>> Hi,
>>
>> Last night i updated to the latest packages from atrpms and the 
>> latest svn.  Since then I have seen a couple odd problems.  First 
>> watching live tv causes a studder every couple seconds.  If i press 
>> record then watch it in the recordings it doesn't have any problems.
>>
>> Second new recordings have a really high pitch everyone is talking 
>> with munchkin voices.  And the voice seems to get higher the longer 
>> the machine is on.  The time stretch is set at 1.0.  Old recordings 
>> do not have this problem.
>>
>> Anyone seen any of these problems or know how to fix them?
>>
>> Thanks,
>> Justin
>>
>