resonate Posted August 6, 2013 Report Share Posted August 6, 2013 Hello. I have a question considering sync. A friend is about to shoot music video at 60fps , the final result is going to be 25 fps. They want to playback the music on the set, shoot at 60fps and the camera is not going to record sound. Will it sync with the music at post? What is a tested workflow for the shoot? Quote Link to comment Share on other sites More sharing options...
studiomprd Posted August 6, 2013 Report Share Posted August 6, 2013 " Will it sync with the music at post? " maybe... it depends... on the workflow... " What is a tested workflow for the shoot? " the one your production develops and tests successfully Quote Link to comment Share on other sites More sharing options...
Ze Frias Posted August 6, 2013 Report Share Posted August 6, 2013 resonate: are they shooting in 60fps to conform to 25fps, to produce a slow motion effect? if so, sync sound may not be feasible. You can maybe feed to camera, but I don't think that will help, and I don't believe you will be able to use timecode to keep sync. If otherwise they are shooting in 60fps to then throw away 35fps to end up at 25fps (why would they do that?) then you can do sync the old school way: slate sticks; they can worry about syncing it. Keeps post on their toes Not sure if that answers your question. EDIT: Disclaimer: not an expert in the subject, just trying to help move the thought processes on the subject. Quote Link to comment Share on other sites More sharing options...
greg sextro Posted August 7, 2013 Report Share Posted August 7, 2013 Unless you know what you are doing, have them give the audio to a transfer house and have them prep the files. Quote Link to comment Share on other sites More sharing options...
old school Posted August 7, 2013 Report Share Posted August 7, 2013 Unless you know what you are doing, have them give the audio to a transfer house and have them prep the files. Yes. Shooting 60 for 25??? Crazy. 50 for 25, sure it can be done but at what cost? Most camera pro or shmo camera's don't record sound at higher frame rates BTW. CrewC Quote Link to comment Share on other sites More sharing options...
ccsnd Posted August 7, 2013 Report Share Posted August 7, 2013 if you are shooting at 60 fps from 25 (for slow mo effect), that is 240% of the original. Make a file that plays back 240% of the original. have the talent lip sync / dance / do whatever sync in post. That is going to be pretty fast. Good luck with that. Quote Link to comment Share on other sites More sharing options...
resonate Posted August 7, 2013 Author Report Share Posted August 7, 2013 Thanks for all of the replies. It seems they will go for the' playing the music faster' route. Quote Link to comment Share on other sites More sharing options...
Marc Wielage Posted August 8, 2013 Report Share Posted August 8, 2013 And I would also add, they should use multiples of 25fps for a 25fps post situation: 50fps, 75fps, 100fps (etc.). Be warned that humans can rarely mime to music more than about 50% faster than normal, which would be about 37.5fps or so (you might be able to do 40fps, which is an even 60% faster). I would do a workflow test first to make sure everything will work, and make sure the performer is comfortable at this speed. It will help to have an accurate timecode playback source like Pro Tools or Courtney Goodin's BWF-Widget Pro. Quote Link to comment Share on other sites More sharing options...
Diego Sanchez Posted August 8, 2013 Report Share Posted August 8, 2013 If you want to sync easier, when you speed up the track you can also speed up timecode. Normally on music videos you play back a track that has the song on the left and an audio track containing timecode on the right. The key is to pitch shift the Timecode track but not the song track, so that way the song pitch although quicker will sound on pitch, but the timecode need that pitch change for the slate to read it. Deneke slates can read of speed timecode quite well, from about 10% speed to 250% or so, but Marc is right, more than 60% quicker is to fast, unless is a very slow ballad. Have fun Quote Link to comment Share on other sites More sharing options...
lazajamsonic Posted February 10, 2022 Report Share Posted February 10, 2022 old thread, but maybe still helpful to someone out there - I have found that my Denecke TS-C slate will not handle LTC timecode that has been sped up by 200% (for 48fps shooting). Need to test this out further, but so far, wired or wireless LTC (via G3 system).. the sped up version of the LTC didn't register at 200%. Quote Link to comment Share on other sites More sharing options...
Bouke Posted February 10, 2022 Report Share Posted February 10, 2022 I would think you don't use a slate with speeded up TC. You can slate the 'normal' TC, but if there is a a boombox on set that has music on 1 channel, and (speeded up) LTC on the other, record both on the cam. In post, let them do the slomo and apply the same slomo to the (LTC) sound, then software decode to AUX and sync / multicam to that. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.