**ATEM Mini Pro** is a beast for live‑streaming but it feels like a locked‑box until you learn the signal‑chain tricks. The first rule? Keep every camera on the same frame‑rate and resolution; hit 1080p 30fps for that sweet spot between quality and bitrate (around 5 Mbps in H.264). Plug each cam into the Mini’s SDI or HDMI, then route the mix to **OBS** via the built‑in 3‑Gbit‑E S‑DI or via a separate capture card if you’re using a webcam—so your webcam’s 30 fps stays in sync without dropping frames.

Pro tip: Use the **ATEM Mini’s** “Program” and “Preview” buffers to prep each camera before the live cut. Load each source into Preview, do a quick “Trim” to cut out the first 1–2 seconds, then switch to Program for the actual stream. This gives you clean transitions, no jarring cuts or black bars. Don’t forget to tweak the *audio mixer*—set the mic gain on the **XLR preamp** to hit -18 dBFS on the Mini’s line‑in, then apply a subtle de‑esser in OBS for the final mix.

**Resource of the Day**

[YouTube Search: “ATEM Mini Pro multi‑camera streaming tutorial”](https://www.youtube.com/results?search_query=Atem+Mini+Pro+multi-camera+streaming)