On Fri, 2013-10-18 at 22:36 +0100, James Stone wrote: > Lastly, do any of you know any research about the limits of human > perception with these kinds of things? 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#Recommendations http://en.wikipedia.org/wiki/Lip_flap#Recommendations Related: http://en.wikipedia.org/wiki/Clapperboard _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user