Workflow guide
Every angle in sync, every cut on the beat
Multicam turns coverage into a performance: sync once, then switch angles the way a live director calls cameras. The craft is all preparation — bad sync poisons every cut downstream. This guide walks from clap to locked cut without drift, pops, or lip-sync embarrassment.
From the Mellius product team · Updated September 28, 2026
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- ›Remove all silent parts
- ›Add bold kinetic captions
- ›Only have Bill Ackman speaking
- ›Cut to highlights only
- ›Add cinematic transitions
- ›Match cuts to the beat
The short answer
Sync all camera angles and separate audio to a common clap or timecode, stack them in a multicam sequence, then switch angles in real time while watching the performance. Cut on action and dialogue beats rather than fixed intervals, cover weak moments with reaction cutaways, and finish with a loudness and lip-sync check.
Sync within a frame
Lip movement and claps agree across every angle for the full duration of the take.
Story chooses the angle
Each switch follows action, dialogue, or emotion — not a timer or a novelty urge.
No drift over long takes
Hour-long recordings end in sync because sample rates and frame rates matched from ingest.
Sync everything to one reference
Start every take with a visible clap or flash that all cameras and the separate recorder can see and hear — waveform sync is excellent but a clap gives you a verifiable frame. Prefer waveform or timecode sync over manual nudging: align by audio waveforms when cameras recorded scratch sound, or by matching timecode when they jammed to one clock. Verify sync at the head, middle, and tail of each take, because a one-frame slip at the start becomes a visible echo by minute forty.
The silent killer is mismatched clocks: cameras at 23.976 versus 24, or audio at 44.1 kHz against a 48 kHz timeline, drift apart over long recordings. Conform everything to one frame rate and one audio sample rate at ingest, before building the multicam sequence. In Mellius, synced angles sit as ordinary timeline tracks, so you can nudge, re-sync, or undo any alignment conversationally without rebuilding the stack.
- Clap every take even when syncing by waveform or timecode.
- Conform frame rates and audio sample rates before syncing.
- Verify sync at head, middle, and tail of long takes.
- Keep the best audio as the single master track.
Switch like a live director
Play the multicam sequence in real time and cut angles live, watching the performance rather than the thumbnails — cut on gesture, line delivery, and musical beats the way a broadcast director calls cameras. Hold the wide for orientation at section starts, punch into close-ups for emphasis and reactions, and resist switching on every sentence, which reads as nervousness. Reaction shots and cutaways are your safety net: they cover flubbed lines, focus hunts, and operators reframing.
After the live pass, refine with ripple trims that tighten each angle's entrance without disturbing sync, and replace any weak switch with a cutaway rather than leaving a soft shot. Keep one continuous master audio track underneath everything so angle changes never cause level jumps or room-tone steps. Common mistake: cutting to the angle with the most motion instead of the most meaning — movement attracts the eye, but story should choose the camera.
- Cut live on gesture, dialogue, and musical beats.
- Open sections wide, punch in for emphasis and reactions.
- Cover weak switches with cutaways instead of keeping soft shots.
- Run one continuous master audio track under all angles.
Finish without drift, pops, or color jumps
Flatten or commit the multicam edit before color and audio finishing so effects, reframing, and grades apply to stable clips rather than a live switching stack. Match exposure and white balance across angles first — viewers forgive a soft shot faster than a green one — then balance dialogue levels so no angle change alters loudness. Add short audio crossfades only where the master track itself was cut; angle switches over continuous audio need none.
Run the final QC at full speed on speakers and headphones: watch lips for sync, listen for room-tone steps at every switch, and confirm captions and graphics clear all angles' framing. Export a master with the flattened timeline archived alongside the live multicam sequence, so revisions can reopen the switchable stack. A web-based editor with a free start, like Mellius, lets you review these finishing passes anywhere and undo any committed choice.
Compare the workflows
| Method | Best fit | Trade-off |
|---|---|---|
| Manual waveform alignment | Two cameras and short takes | Slow and error-prone past a few minutes |
| Audio and timecode sync | Interviews, events, and music performance | Needs scratch audio or jammed clocks |
| Live-switched recording | Streams and same-day turnarounds | Less freedom to fix angles in post |
A practical sequence
Put it into practice
- 01
Conform and sync
Match frame and sample rates, then sync every angle to the clap, waveform, or timecode.
- 02
Switch in real time
Cut angles live on performance beats, covering weak moments with cutaways.
- 03
Flatten and finish
Commit the edit, match color and levels, then QC lip-sync at full speed.
Frequently asked questions
How do I sync cameras without timecode?
Record scratch audio on every camera and sync by waveform in your editor, anchored by a visible clap for verification. Check sync at the head, middle, and tail of each take, since small offsets grow over long recordings. Conform all frame rates and sample rates first or drift will defeat the sync.
Why does my multicam audio drift out of sync?
Drift almost always means mismatched clocks — different frame rates or 44.1 kHz audio against a 48 kHz timeline. Conform everything at ingest and the drift disappears. If a take already drifted, split and re-sync it in sections rather than stretching audio blindly.
How often should I switch camera angles?
Switch on meaning, not on a timer: new speaker, new idea, gesture, reaction, or musical beat. Holding a strong close-up beats cutting to a weaker angle just for variety. As a rule, if the viewer would notice the rhythm of switching, slow down.
Continue reading
Primary sources
Product capabilities change. These official references support the comparisons above.
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