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Premiere Pro Blackmagic Extreme 3 HDMI Delay

Participant ,
May 18, 2023 May 18, 2023

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Hi,

 

Mac Studio M1 Max

32GB

512 SSD

OS 12.6.3 (21G419)

 

Our suite is running the latest version of Premiere 23.2.0 - We playback visuals via the Blackmagic Extreme 3 to an extenal Atomos Neon 24 via SDI and also to a LG OLED via HDMI from the Blackmagic Extreme 3.

 

The LG OLED is lagging behind by around half a second from Premiere and the Atomos Neon.

 

I've checked playback with Davinci Resolve and the TV is in perfect sync with Resolve and the Atomos Neon.

 

The issue appears to only present itself with Premiere Pro. We have another suite (PC) running the Extreme 3 using the same model of TV with the same issue.

 

I can't see any settings via playback or Desktop Video (Blackmagic) to correct this.

 

I've been in contact with Blackmagic support who are investigating.

 

I've attached two videos showing the lag with Premiere and the correct sync with Resolve.

Bug Unresolved
TOPICS
Editing and playback

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4 Comments
Adobe Employee ,
May 18, 2023 May 18, 2023

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Just to check - have you tried changing the transmit "Video Offset" setting under Preferences->Playback? There are also some plugin specific settings available in the same window. 

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Participant ,
May 18, 2023 May 18, 2023

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Hi,

 

I need to bring the visuals forward <<< as the TV is delayed/lagging behind- the offset setting delays the visuals as far as I'm aware, which would send it in the wrong direction >>>

 

This setting would also directly affect the Atomos Neon which is in perfect sync currently.

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Adobe Employee ,
May 18, 2023 May 18, 2023

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Right. The Blackmagic transmit plugin requests a certain buffer of frames from Premiere ahead of the playhead. Premiere can buffer the frames more - but not provide fewer frames. If the Video Offset setting for the Blackmagic transmit plugin (the offset can be changed per plugin) in Premiere is already 0, the Blackmagic plugin would need to be modified to request fewer buffered frames to get the sync right. I would reccomend bringing this up with Blackmagic (which it appears you already have).

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Participant ,
May 18, 2023 May 18, 2023

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Thanks for the response. If it were possible to go into the negative with this setting - this would affect both the neon which is in sync so it would pull the TV in sync and push the Neon monitor out of sync.

 

I've passed on your notes to Blackmagic. 

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