Find the dead air in a recording
Drop in a video or audio file to see where the pauses are and how much time natural, balanced and tight pacing would take out.
Updated November 12, 2026
Runs in this browser tab. Nothing you add is uploaded.
How it finds pauses
The tool decodes the sound in your browser, measures how loud each 20 milliseconds is, and marks the stretches quieter than the level you set. Start at the default and move the slider if your room is noisy or you speak softly.
Each pacing setting is the one the Cutroom AI editor uses. Natural cuts pauses longer than half a second down to a fifth of a second. Balanced, the default, cuts pauses over 0.35 seconds down to 0.12. Tight cuts anything over 0.3 seconds down to 0.08. The table shows how many pauses each would cut and the new length.
What the result tells you
A talking-head take with a lot of dead air usually comes from reading, thinking between lines, or restarting. If most of the time goes at the start and end, you only need a trim. If it is spread through the take, an automatic pause cut saves the most work.
The strip under the numbers shows where the pauses sit, from the start of the file to the end.
Tool versus editor
This tool listens for quiet. The editor works from the transcript instead: it cuts the gaps between words, walks each cut edge to where the sound really starts and ends, and fades each joint so nothing pops. It also removes ums and retakes, which a loudness meter can't hear. Expect its numbers to differ a little from these.
Long files take memory to decode in one go, so this tool works best on recordings under about half an hour. The editor reads long recordings in windows and opens files up to 180 minutes.
Questions
Is my file uploaded?
No. The sound is decoded and measured in this tab.
Why does it count fewer pauses than I expected?
Room noise can sit above the threshold. Move the slider up a few dB and the quieter gaps will show.
Can it export the cut video?
No, it only measures. To get the cut video, open the file in the editor.
Keep reading
Try it on your own footage.
The editor opens in your browser with no account, and the sample project doesn't use an edit.