[PD] Video with embedded audio track

Peter Plessas plessas at mur.at
Wed Jul 2 01:55:11 CEST 2008

Dear List,

i wonder if anyone has come up with a way to have framewise sync between 
a gem video and audio via readsf~.
Did anyone experience drifts on a 90min video that way?
To me it seems like the only way to achieve this is to have a message 
clock running both readsf~ and the gem movie player.
Or to use block~ to have the audio dsp clock as master.

Interesting topic indeed.


Jack wrote:
> Le 1 juil. 08 à 17:05, Andre Cardozo a écrit :
>> Hello all,
>> I´m working on a project which requires some videos to be displayed on
>> screens, along with their corresponding soundtracks.
>> I do know how to use GEM to display and manipulate the videos, but as
>> far as I know GEM ignores the embedded audio tracks, as is a
>> visuals-only library.
>> So the questions are: is it possible to display/manipulate a video AND
>> its correspondent/embedded audio track together, maybe using another
>> library or objects? or do I have to extract the audio from the AVI
>> file, handle audio and video separately and synchronize them?
> Hello,
> Yes, you can extract the audio from your movie and use something like  
> [readsf~] to synchronize them (using GEM).
> Or you can use [pdp_qt~] or [pdp_yqt] from PDP and PiDiP.
> ++
> Jack
>> Thanks
>> Andre
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