What audio delay is required to sync audio to video? I have 500 milliseconds max on my mixer.

I'm not an expert technician but I installed the card, configured it for 4 inputs (3 are cameras and one is a graphical feed from ProPresenter) and no audio through the card. I have a separate USB audio interface. The audio and video come together in Wirestream Pro. I did not have to add any delays in order to have the output from Wirestream synch'd. Images of the lips and audio of songs and speech seem perfectly aligned.

Does this work with OBS ?

Works perfectly with OBS. As long as the computer it is running on has the resources, it will work very well with OBS and Resolve.

The gaming computer that we purchased does not have an expansion slot in the computer and it can not be returned. It has 2 3.0 ssusb. Options?

How many inputs or outputs do you need? Magewell makes quality USB 3.0 capture dongles, with HDMI or SDI (one input per unit). Depending on your needs, perhaps NDI might be an option - NDI from Newtek is a FREE way to get IP video over your network, for instance video from one computer to another, or send gaming video out over network to another computer running OBS or something.

Does anyone know how to get 1080p to work into Vmix? Every other format works in vmix but 1080p does not work.

Once installed you will need to get the black magic drivers installed as well and run the software once. From there in vmix you will need to make sure your project file is set correctly to 1080p 30 frames or 60 depending on recording or stream and your internet speed. Once that is set you can add a camera source on from the list. If done correctly you should see them listed as Decklink Duo 1, 2, 3, or 4. Make sure wen you are adding your source that it reads the cameras output correctly. It is super important that the camera and the project file match or higher then what the camera is outputting to the sdi or it will give you problems. Another tip I can give you to test the camera is to use the black magic software to preview the camera output to gather your settings.

ASIN	B01EKGTZ8C
AV Output	SDI
Antenna Location	Video Recording
Best Sellers Rank	106,196 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 160 in Internal TV Tuner & Video Capture Cards
Box Contents	item
Brand	Blackmagic Design
Brand Name	Blackmagic Design
Compatible Devices	Windows and Linux systems
Country of Origin	Singapore
Customer Reviews	4.8 out of 5 stars 238 Reviews
Global Trade Identification Number	09338716003796
Hardware Interface	PCI Express x1
Hardware interface	PCI Express x1
Item Dimensions	15.2 x 15.2 x 15.2 centimetres
Item Type Name	computer-internal-tv-tuner-and-video-capture-cards
Item Weight	5.3 Ounces
Manufacturer	Blackmagic Design
Minimum System Requirements	PCIe 4.0 x4 slot, MacOS, Windows 10, Linux
Model Name	Blackmagic Design DeckLink Duo2
Model Number	003796
Operating System	Linux
Operating system	Linux
Other Special Features of the Product	Four independent and configurable SDI interfaces; Simultaneous capture and playback
Platform	Linux
Recommended uses for product	Video Recording
Special feature	Four independent and configurable SDI interfaces; Simultaneous capture and playback
Tuner Type	Digital Tuner Technology
UPC	750408404893
Unit Count	1.0 Count
Video Capture Resolution	1080p
Video capture resolution	1080p

Blackmagic Design DeckLink Duo 2 4ch SDI Playback and Capture Card BMD-BDLKDUO2

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