Playback on music video
Shooting on super 16. How does timecode figure in to this? Producer wants to make sure they'll be able to sync everything up later. I do have access to a SoundDevices 702t if that's helpful.
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You don't need TC to the camera.
You need to do a sample rate conversion of your music which is most likely at 44.1K sample rate... to 48K. Plus it needs to play back on the 702T at the Pullup rate 48048K with 30NondropTC, assuming you are shooting at 24fps. Hook up a TC 'Dumbslate' to the 702 so it reads the TC off the 702 everytime you start the music. Not free run. You might have to prepare different segments of music with countoffs to get the musicians going. Use the Sample rate converted 48k music without pullup for your final music. |
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May I expand the question to include HD video cameras?
Need to shoot a music video. What is the best workflow, that would allow to easily sync video segments shot to the music score in post? |
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I did hundreds of high end videos in the 1990's we used a timecode smart slate that used a smpte striped channel from a dat or other source. This source also contained the music. Just shoot the slate before each take and sync in post. Very simple and fool proof.
Paul Hudson Lizardlandvideo.com Phoenix Video Productions |
Paul, I agree. Except I use a laptop + BWF software as a slate. Seems cheaper and more universal than a timecode slate :))
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So if you really don't even need what BWF does -- all you need is a glorified stopwatch to sync four cams and don't care about synching to existing audio -- is there any software that can turn a laptop into a timecode slate? All I really need is a big digital display that goes down to frames...
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I shoot with one cam primarily, sometimes two.
With one cam, syncing to the slate (or laptop screen w audio timecode displayed) is just fine. But with 4 cams like in your case - would it really be practical to run around with the laptop to make it visible to all 4 cams, one by one, at the beginning of each shot? 4-cam shoot sounds like a big production, and in that case I probably would just go with feeding a BWF to them all, and then editing in Avid in post. Avid should be able to pick up aux TC from audio channel, so you could easily sync the clips on the timeline. I also heard that Vegas and FCP can do the same thing with plug-ins. |
I guess I was envisioning something much simpler... just point the cams at the laptop sitting on the set, no running around necessary. The laptop could even be running a simple timer... just something visual to use to sync in post. It doesn't even have to be the correct time, as long as it's visible enough for the cams to see. Best if it indicates frames but not really necessary.
In the absence of this, I just created a DVD with color bars and a timecode window burn, running from -30;00 to 30;00, that I can just fire up and show to the cams at the beginning of each take. For fun, I also added a universal counting leader to the head so I could sync the audio blips if I can get the laptop to play loud enough. All I know about BWF is what I read on the website referred to in your post -- I'm not even really clear on what it is or how you use it with a cam. Not sure how I would feed a BWF into my cams or if it's even necessary. I'm using Z5s with Premiere so I'm not even sure that's the right tool. Sorry for dragging this OT -- it just got me thinking, which is always dangerous. |
There appears to be some confusion here. BWF, (Broadcast Wave File) is not an application but a file type, essentially a garden variety WAVE file (.wav) with additional metadata, such as the time code stamp, which is not a continuous audio stream like Longitudinal Time Code. LTC can be recorded as an audio signal and played back to a reader. Vertical Interval Time Code (VITC) is embedded in the video signal and also continuous. Wave Agent and BFW Widget are applications primarily to change (or read) the BWF metadata after the fact.
Avid NLEs can read LTC and place a file in the timeline accordingly. I think FCP needs a plug-in to read LTC. (?) To my knowledge, no plug-in exists for Vegas, but it can import a BWF directly to the timeline. |
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