Meeting playback — operator card

NOT MEETING-TESTED · September 5, 2026. Use only after the actual-machine import, recovery drills, three starts and full-duration independent-attendee rehearsal pass. Keep the completed copy private. No automatic synchronization or automatic recovery.

Pair / approved version: _ Presenter setup: _

C: _ observed R range: –_ S range: –_ H: _

T: _ last speech L: clean hold ends E: _ P: B: ____

Attendee alignment limits: _ planned mute/video-off interval: _

Prepare — meeting paths closed

Zoom Mute · Stop Video · Stop Share. OBS virtual camera stopped. Backups saved; correct isolated profile/collection selected.
One HEAD source in PLAY only. READY/SAFE are static. Loop off; restart-on-activation on; close-on-inactive on; show-nothing-at-end on. Cut transition; Studio Mode off. READY selected.
Camera: OBS Virtual Camera / Program. Mic: verified virtual-audio device. Speaker: MacBook Pro Speakers, matching existing macOS output; never BlackHole. No headphones used. All OBS desktop/physical-mic capture disabled. HEAD monitoring route rechecked.
Correct file and single narration stream; slides video separate and silent. Drive processing/access verified. Slideshow Play (manual); complete trim range. Notifications off; power and network ready.
Share only the verified Slides window/display. Share sound OFF. Tested optimize/processing settings retained. Private controls stay off the shared surface.

Rehearse — independent endpoint

Three starts, cold and warm; measure cue → head media time zero, not first motion/speech. For a later head event at source time h observed at presentation time A, use R=A−h−C. Check the entire observed timing range, not only its mean; note first sound separately.
Full-duration actual pair: beginning/middle/end lip sync and proof alignment; readable text; exactly one narration; no physical-mic or return leakage.
All required speech/proof finishes by P. S+T ≤ P ≤ S+H−B, S+L ≤ P, P+B ≤ S+E across the accepted range. Manual mute and video-off finish inside the clean tail. Failed check means stop, revise and rehearse again.

Run — presentation first

Confirm READY; start OBS Virtual Camera. While muted, reconfirm Zoom virtual devices. Start Zoom video on READY; unmute the virtual mic only once READY is confirmed silent. No live mic handoff unless separately rehearsed.
Start sharing the Slides surface with sound off. Click the embedded video to start. Presentation clock begins at the first playing frame.
At the recognizable title-to-content transition, select 02 PLAY — one media source once in OBS. Do not click a media restart button or switch away/back. Manual focus/reaction delay is part of R.
Watch progress without touching source properties or scene controls. Attendee/host confirms picture, single narration and Slides; meters alone are not confirmation.
Let all speech and proof finish. When presentation ends during the real ending wave/pause, manually Mute Zoom, then Stop Video within the rehearsed B allowance. Verify both states before clean hold E ends.
Stop Share; select 03 SAFE — no media; stop virtual camera. Do not re-enter PLAY. Any live mic/camera handoff occurs while muted/video-off first.

Abort — isolate before diagnosing

Zoom Mute → Stop Video → Stop Share → OBS SAFE → stop media/virtual camera. If Zoom controls are inaccessible, leave/disconnect the meeting first. Notify host via chat. Do not automatically expose live mic/camera or replay speech.

Missing file/black picture: relink and verify Program/camera. Missing/doubled audio: inspect one source, monitoring device and share sound. Feedback/device loss: restore the Mac speakers and virtual mic, with physical-mic capture excluded; recheck any live-mic handoff. Early/late start, stall or restart: stop both; no improvisational mid-speech seek. EOF: remain isolated; no loop.

Reset in private: stop HEAD → SAFE → READY; Slides first frame, stopped; recheck routes; attendee ready; host explicitly approves a restart. Then presentation first again. See the full guide for recovery drills and rollback.