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Multichannel audio capture in-sync with Video
Hey!
I am looking for a capture card that will let me capture a single video channel in sync with 5 or 6 audio channels. This is for a critiquing system, where I need to have the adjudicators comments recorded in separate audio channels underneath the video channel.
I DO NOT want to have to sync up the audio after capture. What I have been doing is capturing the video through Vegas’s capture utility (and a Grass Valley ACEDVio card), and the multiple audio channels through a Delta 1010 audio capture card right off the timeline. However I cannot start both captures in sync with each other, and since I am capturing several hours at a time the two captures can be slightly out of sync by the end. Any ideas?
Thanks for your help!
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2 Replies
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The only other way I can think of doing this is to have an external audio recorder genlocked to the camera. This would be very expensive and require a master clock for both units to genlock to (not to mention a camera and audio record that supports genlock). You may not WANT to sync the audio after the recording but it may be the only option you can AFFORD to do.
I regularly sync 1-2 hr recordings by hand and it’s not that hard. They only drift about every 20 minutes or so and Vegas makes it dead simple to correct.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
My Delta 1010 does have a Worldclock In. My video source is a non-genlocked composite video signal. I guess I would need a device to sync the non-genlocked video to the master clock. Any idea what this might be? And then I’d also need a Master Clock.
I’m also guessing there are settings in Vegas to capture with embedded timecodes, or do I need a special device to do this?
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