Blackmagic Forum

I bought the Atem Mini Pro ISO when it was released to record my YouTube videos with multiple camera angles. My video editing machine is:

• Intel Core i9-10900k 10c/20t
• 64 GB Ram
• Nvidia RTX 2060, 6GB VRAM

With the Atem Mini Pro ISO (4 cameras) the sync bin is quite responsive. For example if I use keyboard shortcuts to jump back to the last cut position, set mark in, jump forward to the next cut, set mark out, jump back and insert video on top from another angle - that all works pretty smooth and all actions execute in order.

Well when the Atem Mini Extreme ISO was announced, I preordered right away! 8 Camera inputs and 2 outputs, plus super source, very cool.

Now... I just edited my first Resolve project with 8 cameras in the sync bin and its got quite a lot of latency. So much so that if I clicked 3-4 keyboard short cuts in a row they end up out of order or skipped. Sometimes you skip back a few cuts and hit play and then resolve starts playing from some random location on the timeline (like it didn't have time to process the number of times you told it to skip the playhead back).

Anyone have any tips for optimizing Davinci Resolve Performance with an Atem Mini Extreme ISO project where the sync bin has 8 camera angles?

• Are there any settings I should be checking within Resolve?
• Is there any hardware optimization that would impact this? (HDD speed, GPU spec, GPU VRAM, anything else?)

Full Disclosure: I haven't update to Resolve 17 yet. Still on last released 16 - in case someone thinks there may be new features that enhance performance or hardware acceleration or something.

one optimisation is to distribute the footage to several fast drives (SSD's).

Try using Optimized Media. (Or Proxies if you update to 17.)

Thanks for the tips so far.

I'm going to try the proxies/optimized media first as I don't have to change any hardware. But I'll also try a faster newer generation SSD (but no spreading across multiple SSDs yet).

if your workstation has USB 3.1 gen 2 ports, external SSD's are equally fast as internal SSD's. Very practical when the external SSD's are the ones that have been used for filming.

Phil999 wrote:if your workstation has USB 3.1 gen 2 ports, external SSD's are equally fast as internal SSD's. Very practical when the external SSD's are the ones that have been used for filming.

Thanks @Phil999. This first project was recorded on a Samsung T5, but I also own a T7 to try and motherboard has all the USBs! Ha, ha. I will be sure to choose one of the clearly labelled faster ones.

I also did some reading last night and it seems the mp4 format that the Atem Mini's record with is an interframe codec which doesn't scrub well. The idea is that this format has keyframes and then differentials between keyframes, so as you scrub the editor has to go back to fetch the last keyframe and then apply the differentials up to the frame you actually want to display/stop at.

So I'm going to do some more research and testing with optimized media/proxy media. I may bite the bullet and update to Resolve 17 now for proxy media.

It would be really cool if I could automate the generation of proxy media as part of media ingestion!