Mac app for multicam audio sync

Line every camera up to the master recording.

Several cameras. One recorder. Latch listens to the audio, not file clocks or jammed timecode, and writes a DaVinci Resolve timeline on your Mac. Original files are never copied or changed.

Apple Silicon · macOS 12+ · No account · Sync will be free · Export needs a license

Latch Review with three camera tiles, a master timeline, and Export to Resolve
Review & ExportCameras lined to the recorder
Instead of Auto Align

Resolve guesses from a waveform. Latch listens to the night.

Auto Align using waveform is built into DaVinci Resolve. It is the right tool for a few short clips with a clean clap. A long set against a recorder is a different job. Latch does that job on your Mac, then hands Resolve a timeline.

Resolve

Auto Align using waveform

Matches selected clips to each other inside the timeline. Fine when the sound is short and distinct. On repeated music, buried claps, and clocks that were never jammed, it snaps to the wrong chorus or leaves cameras sitting there.

Latch

Each camera against the recorder

Listens to the audio, not file clocks or jammed timecode. Checks the placement against the original sound before it trusts it. Failed clips stay visible and say why. Export writes a Resolve XML. Original files never move.

When Resolve will not align the cameras

The night already happened

Clocks lie. The music does not.

01

A long set, three cameras, one recorder

Creation times drift. Timecode was never jammed. The clap is buried in a PA. Sliding clips by ear is how the morning disappears.

02

Repeated music fools a lazy match

A chorus can look like every other chorus. Latch checks the match against the original audio before it trusts a placement.

03

The media should not move

Nothing is transcoded for delivery. The XML points at the files you already have. Original media stays on the card or disk.

The same night, three angles

The music is the clock.

Wide room. Close stage. Side aisle. Latch lines them to the recorder by listening, not by trusting the file clock.

Wide room view of a four-piece band on a small club stage
Camera A · wide
Close stage shot of the same singer in a dark t-shirt at the microphone
Camera B · close
Side aisle view through the crowd toward the same stage
Camera C · aisle
One project. Three stages.

Setup. Sync. Review.

One obvious action at each stage. Nothing extra in the way.

01 / Setup

Drop the night in

Name the project. Add the cameras and the recorder. Fix any camera grouping that looks wrong. Then synchronize.

02 / Sync

Watch the file that is working

No fake percentages. You see the active clip and how many have finished. Longer recordings can take several minutes. That is honest.

03 / Review

Export what you can trust

Play the tiles. Failed clips say why in one sentence. Export to Resolve needs a license. Unverified exports stay labeled.

Local only

The work stays on your Mac.

No account. No upload. Projects live in Movies/Latch. Camera cards and external disks are read only after you pick them. The license checkout is contacted only if you activate a key.

Waitlist · Apple Silicon

Get Latch when it is ready.

Leave an email. We will send the Apple Silicon download when macOS opens it without a warning. Sync will be free. Export needs a license.

Get Latch