[linux-audio-dev] SMTPE/MTC Again

Paul Davis paul at linuxaudiosystems.com
Mon Apr 14 10:10:01 UTC 2003


> > SMPTE/MTC has a resolution of (typically) 1/30 second. it therefore
> > cannot be used for sample-accurate positioning. this will still ensure
> > that everything is in the same place, but it may not be exactly where
> > you want them to be.
>
>This problem disappears when you forget about frames and start looking 
>at it just as an encoded form of time epressed in seconds. Depending
>on the signal quality (no problem with today's hardware), you get an
>accuracy of better than a microsecond.

not for locating to a given position. i know you can interpolate
running SMPTE, but when you use SMPTE as a point in time to go to,
this option is not available. you therefore can't use SMPTE to specify
sample-accurate edit points, etc. 

or am i wrong about that?



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