Grass Valley Forums Facebook   Twitter   YouTube  

Go Back   Grass Valley Forums > Editors > EDIUS: Compatible Third Party Products

Reply
 
Thread Tools Display Modes
Old 08-07-2016, 08:11 PM   #1
Green Grass
Member
 
Join Date: Sep 2014
Location: N. Ireland
Posts: 86
Default Syncing by Timecode with Tentacle Sync

There are many videographers on this forum who film entertainment events, or weddings with multiple cameras and external audio recorders. We are all searching for a low cost, fast time-saving solution to sync our multi-cam and audio media in EDIUS. Most of these users will be aware of the program Pluraleyes and it's limitations both with finding the good audio to sync with and not having an EDIUS extension plug-in see my post here http://forum.grassvalley.com/forum/s...021#post280021.

Expensive cameras are sync both by frame scans signals (Genlock) and timecode through either daisy chain cables or third party wireless system more info here http://www.bhphotovideo.com/explora/...why-it-matters and video here https://www.youtube.com/watch?v=I_ZxRgQNiy4.

I happen to find this NAB demo video online which demonstrates a small, low cost, timecode generator device called Tentacle Sync https://www.youtube.com/watch?v=7HOVTuq6BV8

You can connect the Tentacles devices to any low-cost pro-consumer video cameras or DSLRs and audio recorders. Tentacles devices can be seen as accurate clocks, all running the exact same time, all day with only an inaccuracy of less than 1 frame in 24 hours. A digital timecode pulse comes from each Tentacles device as analog audio to be recorded on any extra audio track or the left channel of both the camera and the audio recorders. When the recordings are imported into Tentacle Sync software, the digital timecode pulse is extracted from the extra audio track and converted to SMPTE timecode which replaces the original timecode metadata. The final result will have both the video and audio recordings with the same timecode metadata which allows easy simple syncing. (You will still have audio drift over 30mins on cheap audio recorders)

At present looking at Tentacle Sync website you will only find syncing software for Mac computers but there is a Windows program that reads audio timecode and transcodes your footage to DNxHD or XDCAM422 (there's also Videotoolshed LTC convert).
For many years now Avid Media Composer can read audio timecode and extract the SMPTE timecode to be added to the Auxiliary TC1 metadata without having to transcode the footage. See this 2009 video here https://vimeo.com/7163878 Blackmagic Davinci Resolve can also read the audio timecode and add timecode metadata but only from the video footage. Both programs can sync everything by timecode but unlike EDIUS these programs don't handle native H264 camera footage very well.

EDIUS will sync any video clips by timecode on a Mult-cam timeline but EDIUS ignores the audio tracks which contains the recordings from audio recorders. You can change a video clip's properties start timecode without affecting the original clip similar to changing the clip's name. But again this is not possible with an audio file.
In Multicam mode, EDIUS will always add the first clip of the selected clips in the bin to the start of the sequence timeline and correctly add the following clips that are select in the bin, at the correct time intervals after that along the timeline. You can change the sequence start timecode from zero to the first clip's start timecode. You can also start adding the clips at any timecode position on the timeline if you set an IN point on the timeline. Unfortunately. EDIUS ignores the separate audio tracks that are also selected in the bin.
I don't jam sync my cameras by timecode, but I do have them set Free Run timecode (timecode clock still runs during pause recordings). I only need to then sync the first clips and in Multicam mode, EDIUS will sync the following clips at the correct time intervals along the timeline.

The guys at Tentacle Sync are working on Windows version of the syncing software that can be exported to EDIUS. We can always hope Grass Valley will add the same Avid audio timecode reading and the syncing features to EDIUS.
__________________
Check out posts on this forum: Sync markers from PluralEyes version 3 or 4 http://forum.grassvalley.com/forum/s...021#post280021 Syncing by Timecode with Tentacle Sync http://forum.grassvalley.com/forum/s...330#post280330 Converting Sequence markers to Clip markers. http://forum.grassvalley.com/forum/s...898#post281898

Last edited by Green Grass; 11-23-2016 at 05:50 PM. Reason: (You will still have audio drift over 30mins on cheap audio recorders)
Green Grass is offline   Reply With Quote
Old 08-08-2016, 04:46 AM   #2
GrassValley_PS
Moderator
 
GrassValley_PS's Avatar
 
Join Date: Oct 2009
Location: Cincinnati
Posts: 4,408
Default

Very nice post.
__________________
Main System: i7 6950X OC to 4.5GHz, ASUS RAMPAGE V EDITION 10, Corsair Dominator Platinum 64GB DDR4 2800, SAMSUNG 950 PRO M.2 512GB , GeForce GTX 1080 Founders Edition, Corsair AX1200i PS, Phanteks Luxe Case, 16TB RAID (4)HGST Deskstar NAS 4TB, Corsair H115i CPU Cooler, AJA Kona 4, BMD Intensity Pro 4K, Win 10
GrassValley_PS is offline   Reply With Quote
Old 08-08-2016, 04:00 PM   #3
Zorro
Senior Member
 
Zorro's Avatar
 
Join Date: May 2007
Location: Vienna
Posts: 2,079
Default

Customers here use Tentacles for over a year now and are very happy with them.
Zorro is offline   Reply With Quote
Old 08-08-2016, 08:41 PM   #4
Green Grass
Member
 
Join Date: Sep 2014
Location: N. Ireland
Posts: 86
Default

Hi Zorro, Can you share your workflow? Thanks. Do you transcode your footage before syncing and what PC software do you use for syncing? Also is it a better workflow than using Pluraleyes?
__________________
Check out posts on this forum: Sync markers from PluralEyes version 3 or 4 http://forum.grassvalley.com/forum/s...021#post280021 Syncing by Timecode with Tentacle Sync http://forum.grassvalley.com/forum/s...330#post280330 Converting Sequence markers to Clip markers. http://forum.grassvalley.com/forum/s...898#post281898
Green Grass is offline   Reply With Quote
Old 08-08-2016, 08:46 PM   #5
Zorro
Senior Member
 
Zorro's Avatar
 
Join Date: May 2007
Location: Vienna
Posts: 2,079
Default

Currently only my Mac people use them. But the PC software has been released so I will test it over the next weeks.
Zorro is offline   Reply With Quote
Old 08-08-2016, 09:47 PM   #6
Green Grass
Member
 
Join Date: Sep 2014
Location: N. Ireland
Posts: 86
Default

Thanks Zorro. It's unfortunate that EDIUS ignores the audio tracks when syncing by timecode in the Multi-Cam mode. As I explained in my post, Avid has everything you need (reads the LTC timecode and syncs) and there is no need for any extra Tentacle Sync windows software. Davinci Resolve can also read the LTC timecode but only from video clips. I don't use either editing programs because I like to edit with my native camera footage (H264) and EDIUS is the best editing program for that.
__________________
Check out posts on this forum: Sync markers from PluralEyes version 3 or 4 http://forum.grassvalley.com/forum/s...021#post280021 Syncing by Timecode with Tentacle Sync http://forum.grassvalley.com/forum/s...330#post280330 Converting Sequence markers to Clip markers. http://forum.grassvalley.com/forum/s...898#post281898

Last edited by Green Grass; 08-09-2016 at 05:34 PM.
Green Grass is offline   Reply With Quote
Old 08-09-2016, 02:59 PM   #7
Andreas_Gumm
Senior Member
 
Andreas_Gumm's Avatar
 
Join Date: Jun 2010
Location: Germany, Berlin
Posts: 2,779
Default

Edius reads timecode from broadcast WAV files very well.
I don't know what others timecodes you would expect that Edius can not read from audio file?

Andreas
Andreas_Gumm is offline   Reply With Quote
Old 08-09-2016, 06:03 PM   #8
Green Grass
Member
 
Join Date: Sep 2014
Location: N. Ireland
Posts: 86
Default

Sorry Andreas, what I mean is EDIUS ignores audio tracks or files when syncing by timecode on a Mult-cam timeline (not in the Bin). EDIUS has no problems reading metadata time code, but it would be great if EDIUS could read LTC timecode from the audio tracks and added to the Auxiliary TC for syncing. I'm surprised broadcasts never requested this. It's been part of Avid the last 7 years.
__________________
Check out posts on this forum: Sync markers from PluralEyes version 3 or 4 http://forum.grassvalley.com/forum/s...021#post280021 Syncing by Timecode with Tentacle Sync http://forum.grassvalley.com/forum/s...330#post280330 Converting Sequence markers to Clip markers. http://forum.grassvalley.com/forum/s...898#post281898

Last edited by Green Grass; 08-10-2016 at 01:22 AM.
Green Grass is offline   Reply With Quote
Old 08-09-2016, 06:10 PM   #9
Green Grass
Member
 
Join Date: Sep 2014
Location: N. Ireland
Posts: 86
Default

Maybe a plug-in could be written with this open source code here https://github.com/x42/libltc
__________________
Check out posts on this forum: Sync markers from PluralEyes version 3 or 4 http://forum.grassvalley.com/forum/s...021#post280021 Syncing by Timecode with Tentacle Sync http://forum.grassvalley.com/forum/s...330#post280330 Converting Sequence markers to Clip markers. http://forum.grassvalley.com/forum/s...898#post281898
Green Grass is offline   Reply With Quote
Old 08-09-2016, 09:11 PM   #10
Andreas_Gumm
Senior Member
 
Andreas_Gumm's Avatar
 
Join Date: Jun 2010
Location: Germany, Berlin
Posts: 2,779
Default

Quote:
Originally Posted by Green Grass View Post
Sorry Andreas, what I mean is EDIUS ignores audio tracks or files when syncing by timecode in the Multi-Cam mode. EDIUS has no problems reading metadata time code, but it would be great if EDIUS could read LTC timecode from the audio tracks and added to the metadata for syncing. I'm surprised broadcasts never requested this. It's been part of Avid the last 7 years.
Maybe I get you wrong, but Edius has no functionality to sync automatically so it does not "ignore" LTC timecode data it simply doesn't sync!
So are you asking for an integrated clip syncronization plugin?

LTC timecode was used in VTR on magnetic tapes and it was recorded on a seperate audio track.
It was needed for fast foreward and rewind tape positioning.
Having this in my mind I don't really know what you are talking about when you are asking for LTC timecode syncronization.

Andreas
Andreas_Gumm is offline   Reply With Quote
Reply
 
Go Back   Grass Valley Forums > Editors > EDIUS: Compatible Third Party Products
 

Bookmarks

Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
DSLR syncing zvit EDIUS: Compatible Third Party Products 13 12-09-2013 10:02 PM
No audio in multicam timecode sync skimmel Editing with EDIUS 7 05-16-2013 12:23 PM
dcr-vx2100 Sony timecode sync Silk_Sk EDIUS: Compatible Hardware and Accessories 1 07-14-2008 08:33 PM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are Off
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 02:55 PM.


Copyright 2014 Belden Inc. All rights reserved.