Hi,

We have an upcoming stream the end of this month, which is our first real stream with multiple camera and mic setup.

Let me explain the setup first:
1. 1 moderator who hosts the talkshow and is in a chair which introduces 3 professors who give each there presentation
2. Professors come on stage 1 by one and have a presenter stage where they can control their powerpoint (45 min)
3. After the presentation the professor comes into the chairs next to the moderator who asks some questions about the presentation from participants at home (they will interact trough microsoft teams live event)
4. After the Q&A of the first professor, the second one comes in, and after that the third.
5. The professors come 1 by one on, and never will be all together in a panel on screen.
6. Streaming event will last around 3 hours straight.

This is how we intend to capture and stream this event:
1. We’ll use vmix on our production computer to add titles, overlay video’s and countdown timers
2. Atem mini will bring in 3 camera’s and 1 output of the professor his laptop
3. We will rent 3 ptz cameras with control deck to control the camera switching and to input certain points we want to capture.
4. Atem will be brought into vmix as 1 scene where we will do the switching of camera’s on atem mini hardware itself
5. Audio will be brought in with boom sticks and lav mics (as backup). All audio will be brought into a tascam with 4 channels (we use 3 ports for lav mics, and have only 1 port left for boomsticks).
6. The audio that comes in with the Tascam will be brought into the ATEM mini Mic slot
7. All of the audio and video camera’s will be brought into 1 scene in vmix as that has the BMD video and BMD audio as input
8. Introduction videos with CT timers, lower thirds, transition videos will be put as scenes in vmix
9. We will use a streamdeck to do certain switches from scenes in vmix, and videoswitching on the atem
10. We have 1 HDMI out of my computer to see the full screen output what the end users will see. We want to record from an external device (we have an avermedia game capture device but it didn’t capture the audio of the full screen capture) Workaround here?
11. All of the vmix scenes and audio will be brought in trough external output in the Microsoft teams live event. The webcam will be ‘vmix video’ and audio will be Virtual audio cable A (also added in VMIX that all audio goes to audio Bus A).


Yesterday we did some testing and after some time the VMIX scene of ATEM didn’t give any sound anymore, and the switching was lagging. Then vmix stopped interacting. This happened to me several times when I brought in the atem mini device as a scene into vmix.


Is this a hardware or software problem?

My pc specs are:
• CPU: AMD ryzen 5 3600
• Asrock X570 phantom gaming 4 motherboard
• RAM: Corsair DDR4 vengeance LPX 32 RAM
• GPU: Gigabyte Geforce GTX 1650 super OC 4G
• SSD: WD Bleu SN550 1TB


Could anyone shine his light on this setup and why we would run into vmix crashing? Do we need to change something in this setup to make it more failproof? It’s our first big stream and not very high budget.

Thanks in advance and sorry for the big text. 😊