I've always assumed that since the ATEM software has a TimeCode feature, that it would set all my cameras to match that particular timecode, but somehow it never seems to work right.
For example, I created a video today with and ATEM Extreme ISO with the following ports:
1. BMPCC 6K G2 (my main source of audio is in the XLR inputs).
2. BMCC 6K (FF) - internal mics
3. BMPCC 4K - internal mics
4. BMPCC 6K Pro - internal mics
7. My Mac Desktop (has audio on).
8. HyperDeck Shuttle HD to play things like my intros (has audio on).
I use the ATEM software to define a title, and I have it set to record originals in camera, and inserted cards in the 6K G2, and the 6K Pro. Then I start the recordings all at the same time from the ATEM.
When I load the project into DaVinci to make some changes like trimming the start and end, I've noticed that when I use the Camera Originals, the sound is out of sync. When I use turn off the originals, the sound is fine.
Another funny thing is that the Sync bin only shows Camera #1. I assumed the TimeCode would be identical in each ISO track, including the BRAW originals. Apparently not.
So, I decided to just disregard all the ISO magic and place all the clips into a new project, then add all the tracks and that's where I noticed that the dates on all the cameras are different. I recorded all these tracks together, but according to the media pool, they were recorded on 3 different days.
I'm not sure if dates can be sent via the HDMI TimeCode Sync, but is it possible that's why the Sync Bin didn't show all the other cameras? Is it possible they all share the same timecode, but DaVinci also factors in the date? If so, I'll know I need to ensure I verify the date.
For what it's worth, I've got a USB-C to Ethernet adapter and I've used that as a quick way to set both date and time to Internet Standard Times. Perhaps if I add that to my pre-recording checklist, I can prevent this.
Before I tinker with hacks, is it simply that I need to do something in the ATEM software to make sure EVERYTHING gets the TimeCode correct?
For example, I created a video today with and ATEM Extreme ISO with the following ports:
1. BMPCC 6K G2 (my main source of audio is in the XLR inputs).
2. BMCC 6K (FF) - internal mics
3. BMPCC 4K - internal mics
4. BMPCC 6K Pro - internal mics
7. My Mac Desktop (has audio on).
8. HyperDeck Shuttle HD to play things like my intros (has audio on).
I use the ATEM software to define a title, and I have it set to record originals in camera, and inserted cards in the 6K G2, and the 6K Pro. Then I start the recordings all at the same time from the ATEM.
When I load the project into DaVinci to make some changes like trimming the start and end, I've noticed that when I use the Camera Originals, the sound is out of sync. When I use turn off the originals, the sound is fine.
Another funny thing is that the Sync bin only shows Camera #1. I assumed the TimeCode would be identical in each ISO track, including the BRAW originals. Apparently not.
So, I decided to just disregard all the ISO magic and place all the clips into a new project, then add all the tracks and that's where I noticed that the dates on all the cameras are different. I recorded all these tracks together, but according to the media pool, they were recorded on 3 different days.
I'm not sure if dates can be sent via the HDMI TimeCode Sync, but is it possible that's why the Sync Bin didn't show all the other cameras? Is it possible they all share the same timecode, but DaVinci also factors in the date? If so, I'll know I need to ensure I verify the date.
For what it's worth, I've got a USB-C to Ethernet adapter and I've used that as a quick way to set both date and time to Internet Standard Times. Perhaps if I add that to my pre-recording checklist, I can prevent this.
Before I tinker with hacks, is it simply that I need to do something in the ATEM software to make sure EVERYTHING gets the TimeCode correct?
- Attachments
-
- ATEM TimeCode Sync Issue.png (224.08 KiB) Viewed 969 times
Joe Crescenzi, AskJoe.TV
Blackmagic products owned: BMCC6K (FF), BMPCC6K Pro, BMPCC6K G2, BMPCC4K, ATEM Mini Extreme ISO, HyperDeck Shuttle HD, ATEM Mini Pro ISO
Blackmagic products owned: BMCC6K (FF), BMPCC6K Pro, BMPCC6K G2, BMPCC4K, ATEM Mini Extreme ISO, HyperDeck Shuttle HD, ATEM Mini Pro ISO