Cut the dead air.
Keep everything else.
Sierra is a DaVinci Resolve plugin for macOS that finds every silence in your dialogue track and removes it automatically. Video and audio together, gaps closed, timeline clean. What used to eat an hour of your edit takes minutes.
HOW IT WORKS
Three steps. That’s genuinely it.
Analyse
Pick your audio track, pick a preset, press RUN. Sierra drops a red marker on every silence it finds — you see exactly what’s queued before anything gets cut.
Cut
Sierra blades the timeline at each marker and ripple-deletes the silent sections. Video included, so picture and sound stay in sync and every gap closes on its own.
Clean up
When it’s done, Sierra removes its own markers. A clean timeline, no leftovers, nothing to tidy up yourself.
PRESETS
Three starting points. Fine-tune from there.
Snappy
MAXIMUM DEAD-AIR REMOVAL
Cuts breaths, rustle, every gap. For fast-paced, punchy edits with no breathing room left in.
Balanced
NATURAL-FEELING CUTS
Conversational delivery. The go-to for talking-head videos, tutorials and podcasts.
Relaxed
THE SAFE OPTION
Quiet speech and whispers survive, padding is generous. When the edit needs to breathe.
Every parameter is adjustable. Touch anything and the preset switches to Custom. Big −/+ buttons or type values directly.
REQUIREMENTS
- macOS only — Apple Silicon and Intel. Windows is not supported.
- DaVinci Resolve 18.5 or newer — free version and Studio both work.
- An internet connection for the one-time install.
Python 3 and ffmpeg install automatically if they’re missing. No Terminal required.
WHAT’S IN THE ZIP ~100 KB
SierraSilenceRemover.pythe plugininstall.commanddouble-click installer, handles dependenciesPreview UI.commandsee the interface before you installREAD ME FIRST.mdquick-start, presets, troubleshootingLICENSE.txtsingle-user licence — personal & commercial
GETTING SET UP
No code. No Terminal. No technical knowledge.
Unzip & open the installer
Right-click
install.command→ Open. macOS shows a one-time “downloaded from the internet” warning — normal, and covered in the README.Let it handle dependencies
The installer checks for Python and ffmpeg and installs both automatically if they’re missing.
Flip one Resolve setting
Preferences → General → enable external scripting. One setting, one time.
Run Sierra
Find it under Workspace → Scripts. Pick a track, pick a preset, press RUN.
A COUPLE OF HONEST NOTES
Hands off while it cuts
Sierra drives Resolve directly while making cuts — leave the machine alone during a run, or hit Cancel. The analysis phase has no such restriction, so you can keep working while it scans.
One shortcut to confirm
Tell Sierra your Resolve “Add Edit”
keyboard shortcut once. Default is cmd+K. There’s a field in the UI with a tooltip, and
the README covers it.
Everything Sierra does is undoable in Resolve with ⌘Z.
FAQ
Questions, answered straight.
Does it work on Windows?
No. macOS only — Apple Silicon and Intel.
Does it work with the free version of Resolve?
Yes, fully.
Will it mess up my timeline?
Use Mark Silences Only mode to see
exactly what would be cut before you commit. And everything is undoable with ⌘Z.
Do I need to know Terminal or how to code?
No. The installer is a double-click file that handles everything.
What about whispers or quiet speech?
Switch to the Relaxed preset, or lower the silence threshold until Sierra stops catching them.
How do I get updates?
Re-download from your original order link when updates ship. Current version is 3.3.6.
YOUR BONUS PLUGIN
Buy Sierra, get Auto Reframe free.
Punch in. Stay locked. Zero extra software.
Sierra tightens your audio — Auto Reframe gives the picture its energy. It applies rhythmic punch-in zooms across your talking-head clips automatically, auto-scaling the pan & tilt so your subject stays locked in frame.
Your timeline, minus the dead air.
One pass, minutes not hours, and a clean timeline at the end of it.
Buy Sierra