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1 total messages Started by Bill Fenner Thu, 08 Oct 1998 00:00
Re: [mbone-be] Re: MBone services
#143
Author: Bill Fenner
Date: Thu, 08 Oct 1998 00:00
20 lines
1496 bytes
In message <2345.907858878@cs.ucl.ac.uk> Jon Crowcroft wrote:
>
>In message <199810081438.QAA24919@vivaldi.belnet.be>, Patrick De Muynck typed:
> >> ... I also guess that then I wouldn't be
> >>so annoyed with the delay that the video has with respect to the
> >>audio (very annoying on my SGI-O2, or am I doing something wrong?).
>
>well the SGI O2 isnt really a lightning machine.....note there are
>better audio systems around as well as video - 

But this is an application issue - vic and vat don't even bother trying
to synchronize the audio and video streams together.  Although video is
still fairly difficult, particularly because of the variability in
decoding time, very precise timing of the audio is possible - I have
seen an O2 so well synchronized with specially designed network audio
hardware (just using the RTP timestamp and NTP synchronization) that
you don't hear any phase difference if you pipe both audio streams
through the same amplifier.

  Bill
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