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Topic: Audio track with Quicktime (Read 831 times) |
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ethank
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Audio track with Quicktime
« on: Sep 25th, 2004, 11:59pm » |
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Is there a way in processing to deal with the audio track of a quicktime movie in sync with the video? Like for instance getting the levels?
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ethank
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Re: Audio track with Quicktime
« Reply #1 on: Oct 10th, 2004, 2:30am » |
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So is it not possible to get audio levels from a Quicktime frame?
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bsr
 
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Re: Audio track with Quicktime
« Reply #2 on: Oct 10th, 2004, 12:05pm » |
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sorry you've not got a reply sooner, i did see the original post but thought i'd leave it to someone more knowledgable.
you're talking about playing a quicktime movie and at the same time doing some kind of overlay using the audio data from it?
use SONIA/jsyns liveinput: http://processing.org/reference/libraries/sonia/ - the getspectrum() function will help you sync stuff. not tried this myself but it should work.
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http://hippocamp.net
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ethank
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Re: Audio track with Quicktime
« Reply #3 on: Oct 30th, 2004, 1:12am » |
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Well, what I basically want to do is parse through a Quicktime file and assemble a new clip from only the frames with audio below a specific DB.
So far I haven't found a way to do this.
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bsr
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Re: Audio track with Quicktime
« Reply #4 on: Oct 30th, 2004, 8:50pm » |
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that'd be a nice project, you could do it using SONIA's getLevel() function and then use saveFrame() to output numbered images that could be assembled into a movie. gettng the audio as well is more difficult.
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http://hippocamp.net
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ethank
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Re: Audio track with Quicktime
« Reply #5 on: Oct 31st, 2004, 1:36am » |
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So sonia can handle audio from Quicktime? it appears Sonia only handles wave and aiff, not quicktime.
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fjen
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Re: Audio track with Quicktime
« Reply #6 on: Oct 31st, 2004, 2:19am » |
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but quicktime does handle quicktime ... nice one, i know. you can use quicktime-for-java to get levels from a running qt.
it's a little tricky - will post an example for you tomorrow.
/F
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ethank
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Re: Audio track with Quicktime
« Reply #7 on: Oct 31st, 2004, 8:19am » |
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You rock 
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