Dear Sirs, We are having problems lyp sync using the Mimolive in our transmissions, added to these drop in frames (Even having an excellent and stable internet connection). System configuration: Version 5.11, Jul 14th 2021, Apple Macbook Pro 15 Core I9 12gb Ram 1tb SSD with MacOS BigSur + NDI Plugins version 5; ATEM Mini pro ISO; Focusrite Solo 3GEN, Internet Dedicated Channel 20 MB. We would appreciate the help of your technical staff as well as users of this forum to improve the experience of our transmissions using Mimolive.
I am sharing part of the transmission in which we encountered problems.
Hi @Iltonys_Verbel_Ramo1 Thank you very much for putting your trust in mimoLive. I’m very sorry to hear about the technical difficulties.
We can rule out the internet connection as the audio and video is transmitted together so they can’t get out of sync at that point. They could get out of sync when YouTube re-encodes the video but that is very rare.
I suspect that the ATEM Mini is causing USB-C to be overloaded due to the work load on the computer.
This can happen for example because the MacBook Pro is getting too hot. You can check this using the Intel Power Gadget as described here: Thermal Throttling - mimoLive - 5
I don’t think the Focusrite Solo is causing this, but to make sure, can you please do a measurement using the built-in webcam and a microphone connected to the Focusrite using this method: AV Sync Meter - mimoLive - 5
Do one measurement right away, then wait 30 min and do another measurement keeping the audio and video running during this time.
Of course I would do this for you, but I don’t have the Focusrite solo.
Yet another thing you can try is change the USB-C ports that you connect the Focusrite and the ATEM to.
Finally, there will be a slight offset between the ATEM and the Focusrite. You can try to send the audio through the ATEM as well or use the Audio delay setting in mimoLive to correct for the offset. In your YouTube video, I can see that the offset is not constant, though, which it should be.
Please let me know if any of this is improving things.
Hey Oliver, this is a great performance-testing list. I don’t think I’ve seen it assembled as cohesively before. It would be a good topic for a blog post, tech note, or FAQ.
Thank you very much Oliver for your quick attention. We will carry out tests as soon as possible according to your recommendations and I will let you know about our experience.
Currently our Macbook pro is kept at a stable temperature (although we are in Barranquilla- Colombia, the temperature of the transmission room is 16ºC / 61° F), additionally we connect to the ATEM by HDMI extenders 4 cameras: 2 Sony from the Alpha 6500 reference, and two CAMCODER: Sony PXW-Z150 4K XDCAM and PMW-EX1 (PMWEX1). We have been doing 2 to 5 days of weekly transmissions using Mimolive for more than 1 year with few problems, the frame drops were sporadic, but for more than a month the frame drop and lip sync problems are constant in each transmission, especially when we use multi cameras.
Let me know your findings. Please note that the room temperature has nothing to do with the thermal throttling issue. The processor gets hotter the more it has to do and Intel‘s solution to keep it from melting is to slow it down significantly to a point where it becomes unusable. The Intel Power Gadget app is the ONLY way to check for this!
You could also try to use the ATEM also for audio input. There is a setting in the ATEM configuration where you can delay the audio in the ATEM. This way the audio and video will be sent to mimoLive already in sync.
Last weekend I had problems with an ATEM Mini pro which when connecting it to my macbook pro 2019 i9 / 32DDR4 (BIG SUR), it did not detect the camera connected to ELGATO CAMLINK 4K, after restarting and uninstalling the CAMLINK APP several times and The NDI 5 Plugins, I decided to install OBS and test if in this software if the camera was detected, surprisingly everything worked from OBS, then I tried one more time, I opened the MIMOLIVE (a little disappointed), and everything returned to normal … It was very strange
We had a lot of issues with our 2019 macbook pro Intel CI9 16GB Radeon Pro 560X 4GB ATEM Mini pro ISO; Focusrite Solo 3GEN and Mimo Live. At first we thought it was a Mimo problem since the CPU usage reached 100% and we had LAG during our multi-camera transmission (SONY Alpha via UTP). We decided to try the same Mac computer but using Windows 10 pro (Via Bootcamp) and Vmix or OBS, and although it improved in some moments we presented Lag, since the AMD codec is not very good compared to the Nvidia Nvenc. Finally we decided to abandon mac as a Streaming platform and we got a custom PC, Alder Lake CI9 12900K, Video Nvidia RTX4090 ASUS Strix, Board ASUS Strix Z690, 64 GB DDR5 HyperX, Power Supply Seasonic Prime PX100. The results have been wonderful and the consumption of the CPU is almost zero and the video card does not exceed 6% in the use in transmissions at 1080p, we can now transmit at 4k or 1080p 60 FPS, something that was impossible with our old mac pro 2019 .
As an additional, this new custom pc is cheaper (in price), than our 2019 mac or a mac studio with M1 MAX processor
we did the same as you we changed mac for a gaming pc with windows 11 pro.
I have evidenced that Apple Mac are very good for sound engineering and music production (pro tools, Ableton Live, etc); but for streaming or 3d rendering work they leave a lot to be desired. In the case of streaming Nvidia Nvenc is totally crazy, its performance is wonderful vs AMD codec or software encoded.