Caster setup

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Setup & casting guide

One-time setup, about 15 minutes. After that, save your channel here, then run the broadcast from the desk.

1 · Scene & sources

One OBS scene with two sources, in this order: Browser source on top (the overlay), Game Capture of CS2 underneath.
Browser source: open the Broadcast desk, press Copy in the Overlay panel, and paste that URL. Width 1920, height 1080. The page is transparent: the game shows through around the graphics.
Leave "Shutdown source when not visible" and "Refresh browser when scene becomes active" UNCHECKED. The overlay keeps itself up to date, and a mid-match reload blanks the boards for 90 seconds while it re-syncs.
Game Capture: capture the CS2 window. Run CS2 in fullscreen-windowed so alt-tabbing to the desk doesn't fight the capture.

2 · Audio: three channels in the mixer

Your mic is the star. Add a Noise Suppression filter (right-click the mic in the mixer → Filters → +). Aim your voice to peak in the yellow, around −10 dB.
Game sound comes in as Desktop Audio. Keep it clearly under your voice: around −20 dB. Viewers want the casters, with the game underneath.
Overlay music: in the overlay browser source's Properties, tick "Control audio via OBS". The overlay then gets its own mixer fader: set it low, around −25 dB. It plays full only on the Preshow board, ducks low under every other board so you can talk over it, and fades out when the game (or the Scoreboard) is on screen.
To hear what viewers hear: mixer gear icon → Advanced Audio Properties → set the overlay (and game) to Monitor and Output.

3 · CS2: the GOTV feed

When a match's server is up, Connect (GOTV) appears below the selected match in Broadcast desk and in its row under Match connections here: it launches CS2 straight into the spectator relay (no player slot, no password). copy cmd gives you the console command instead.
The GOTV picture runs ~90 seconds behind the live game on purpose (anti-sniping). The overlay's scoreboards run on the same delay, so nothing on your stream can spoil what viewers haven't seen.

4 · Cast night, start to finish

Save your Twitch channel here. In the Broadcast desk, choose an admin-confirmed match from the next 24 hours and press Go live once your stream is running. Choose another match to switch coverage, use Break between matches, and End broadcast when you finish. Preshow is a scene for the selected match.
Open the Broadcast desk on whatever screen you have: a browser tab, a second monitor, a tablet, even your phone. It drives the overlay over the network, so it never needs to be on the streaming PC. Pick the match: the show-start countdown fills in automatically at kickoff−20.
Drive everything from the desk: Preshow while gathering viewers, Starting at kickoff, player spotlights and the Scoreboard between rounds: it turns into the halftime board at 12 rounds and the full-time board once the ending is on stream: Best performers at halftime, Player of the Match after the ending. The crib sheet is your private talking points: it is never on stream.
Preview (Overlay panel) opens the overlay in a browser tab on a dark ground: rehearse scene cuts there before going live, no OBS needed.

5 · Practice on a finished match

Tick Rehearsal in the desk's Match section: the picker switches to the season's finished matches. Every scene renders that match's real data, over your real overlay link, in real OBS.
Demo links appear under the picker. Download the .dem, drop it in CS2's game/csgo folder and run playdemo <name> in the console: full spectator camera, plus pause and rewind for camera practice.
Boards show the match's final numbers (no round-by-round replay), so practice cuts and camera work, not live pacing. Never rehearse on air.

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