[mythtv-users] Recorded at a slightly higher pitch

[Rod Smith]

On Monday 15 October 2007 11:59:22 lanas wrote:
> Folks,
>
>   Has anyone noticed that recorded TV shows are replayed at a slightly
> higher pitch, i.e. a bit faster ?  Is this a known problem ?  I was
> listening to a TV host that was previously recorded and I can swear his
> voice sounds higher pitched.

Others have posted two other possible causes. I'll add this: I've seen 
something like this once or twice in videos I've obtained from the Internet. 
Upon investigation I found that they were recorded with an audio sampling 
rate of 44,100 Hz. Apparently certain MythTV video tools like seeing a 48,000 
Hz recording, and play back 44,100 Hz recordings at a higher pitch. I was 
able to fix this problem by transcoding with mencoder and resampling the 
audio. If this is the cause of your problem, though, you'd do better to check 
your audio encoding options and, if possible, set them to encode at 48,000 Hz 
rather than 44,100 Hz. I'm not positive this issue would cause this problem 
on videos recorded within MythTV, though; as I said, I've only seen it on a 
couple of videos I downloaded from the Internet.

-- 
Rod Smith
http://www.rodsbooks.com