Output monitoring delay

Forum|Forum|8 months ago
June 19, 2025
3 replies
346 views

This week I'm in a less than ideal setup - sole monitor (GUI) is a big LED that has ~2 frames picture processing (I've turned anything Auto off in the menus).

Ideally I'd like to dial in a monitor only delay for the audio to compensate (currently using delay effect on the master bus, set to bypass when I export).

Is there a hidden option to adjust delay (audio is actually routed out of black magic IO bit it doesn't show as a Mercury transmit option - probably cos there's no HDMI device attached, only XLRs I think. GUI is HDMI out of Mac Studio)

Feature request

M

MisterAdvent

Inspiring

FWIW, I found an amazing monitor that works great for 4K SDR/HDR around $1k: SAMSUNG E 32" OLED LS32DG802

This is a QD-OLED monitor, with excellent anti-glare capabilities. I see absolutely zero latency. Color can be calibrated with a smartphone.

T

trevora3Author

Known Participant

Zero latency not possible since we abandoned CRTs

https://www.tomshardware.com/reviews/samsung-odyssey-oled-g8-gaming-monitor-review/2?utm_source=chatgpt.com quotes 27ms (~ 0.5 frames depending on frame rate - so pretty good).

Shebbe

Community Expert

In addition to what Jamie suggested, if you can afford to have your display image quality not be as color accurate for the job, try to see if the TV has a Game picture mode. Those usually have the lowest achievable latency and turn most of the processes off. That way you hopefully won't struggle as much with input lag given you're using it as GUI too.

T

trevora3Author

Known Participant

Not really a struggle as such, just requires I disable sequence output delay on export.

As mentioned in OP I turned all the autos off. Couldn't find a game mode option.

It was horrible for grading but time pressure meant there wasn't a lot of time for that anyway.

jamieclarke

Community Manager

Hi @trevora3 - In Preferences, go to Playback under Video Device. You should see your Blackmagic box selected with a checkmark. To the right, there’s an offset setting in milliseconds. Typically, you’ll want to set this to around 125 ms, or adjust it based on what works best for your setup. (Keep in mind that this offset compensates for hardware latency 125 ms roughly equals about 3 frames at 24 fps, for example.)

T

trevora3Author

Known Participant

No sign of BM IO in the playback prefs, unfortunately. Job done, won't be on that particular setup for a year and I think I'll be specifying a proper Hero monitor in addition to GUI (although space limited on OBs)

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