Re: [LAU] OT - Audio and Video Synch

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To: <linux-audio-user@...>
Date: Friday, October 18, 2013 - 10:10 pm

On Fri, 2013-10-18 at 22:36 +0100, James Stone wrote:

I don't know research about it, but there are recommendations for video
and film.

"The accuracy of A/V synchronisation at each stage should lie within the
range of Audio 5 ms early (soundbefore picture) to 15 ms late (sound
after picture).

Limits of the relative timing of the sound component of a television
programme relative to the corresponding picture component
Sound before picture Sound after picture
≤ 40 ms ≤ 60 ms" - http://tech.ebu.ch/docs/r/r037.pdf

"For television applications, audio should lead video by no more than 15
milliseconds and audio should lag video by no more than 45
milliseconds.For film, acceptable lip sync is considered to be no more
than 22 milliseconds in either direction." -
https://en.wikipedia.org/wiki/Audio_to_video_synchronization#Recommendat...
http://en.wikipedia.org/wiki/Lip_flap#Recommendations

Related:
http://en.wikipedia.org/wiki/Clapperboard

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Messages in current thread:
[LAU] OT - Audio and Video Synch, James Stone, (Fri Oct 18, 9:36 pm)
Re: [LAU] OT - Audio and Video Synch, Len Ovens, (Fri Oct 18, 10:43 pm)
Re: [LAU] OT - Audio and Video Synch, Ralf Mardorf, (Fri Oct 18, 10:58 pm)
Re: [LAU] OT - Audio and Video Synch, Len Ovens, (Fri Oct 18, 11:28 pm)
Re: [LAU] OT - Audio and Video Synch, Simon Wise, (Mon Oct 21, 6:00 am)
Re: [LAU] OT - Audio and Video Synch, Ralf Mardorf, (Fri Oct 18, 11:36 pm)
Re: [LAU] OT - Audio and Video Synch, Ralf Mardorf, (Fri Oct 18, 11:04 pm)
Re: [LAU] OT - Audio and Video Synch, Ralf Mardorf, (Fri Oct 18, 11:13 pm)
Re: [LAU] OT - Audio and Video Synch, Monty Montgomery, (Fri Oct 18, 10:25 pm)
Re: [LAU] OT - Audio and Video Synch, Ralf Mardorf, (Fri Oct 18, 10:42 pm)
Re: [LAU] OT - Audio and Video Synch, James Stone, (Fri Oct 18, 10:30 pm)
Re: [LAU] OT - Audio and Video Synch, Ralf Mardorf, (Fri Oct 18, 10:10 pm)
Re: [LAU] OT - Audio and Video Synch, Rick Green, (Fri Oct 18, 9:58 pm)
Re: [LAU] OT - Audio and Video Synch, Fons Adriaensen, (Fri Oct 18, 9:58 pm)
Re: [LAU] OT - Audio and Video Synch, Paul Davis, (Fri Oct 18, 9:45 pm)