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Extensions / Silence trimming in your browser
Silence RemoverPRO

Cut the dead air. Keep every word. 

Upload your voiceover and we find the long pauses for you. See on the waveform exactly what gets removed, undo what you want to keep, download the clean audio.

Your audio never leaves your computer. Only a loudness summary goes to our server (100 numbers per second), and no sound can be rebuilt from it.

voiceover.wav

Example recording · 48 kHz · mono

Audio never uploaded
RemovedThresholdBalanced · 0.45 / 0.30 s

Before

0:57.5

After

0:57.5

Shorter by

-

Example audio, illustrative

60

minutes per file, max

0

bytes of your audio uploaded

10 ms

crossfade at every cut, no clicks

WAV

lossless output, nothing recompressed

Workspace

Upload, preview, download.

01

Audio file

MP3, WAV, M4A, FLAC or OGG. Up to 60 minutes.

or drop the file here
02

Preview

Red parts get removed. Click a red area to keep that pause, click it again to remove it after all.

The waveform shows up here once you load an audio file.
03

Settings

Preset

Shortest pause0.45 s

Pauses shorter than this are left alone.

Pause left behind0.30 s

Every shortened pause keeps this much silence, so words never run into each other.

Threshold...

Summary

Before

-

After

-

Shorter by

-

Cuts

-

Under the hood

Your audio stays on your computer

Silence Remover splits the work so the file itself never travels. Only a level summary is sent, and nothing can be played back from it.

  1. 01AudioContext

    Decoded in your browser

    Your browser opens the file and measures how loud it is every 10 milliseconds.

  2. 02/api/silence/detect

    Only the level summary is sent

    One byte per 10 ms goes to ViralDNA. The server checks your Pro access and returns where the long pauses are.

  3. 03WAV

    Written and saved locally

    The clean WAV is assembled in your browser from your original audio and downloads straight to your computer.

Why it is safe

  • ✓Only silences that stay below the threshold and last longer than the shortest pause get shortened. Speech is never touched.
  • ✓Every cut keeps a margin of silence on both sides and joins with a 10 ms crossfade, so there are no clicks.
  • ✓The parts that stay are not altered, they only move earlier in time. The output is lossless WAV, so nothing is re-compressed.

Next step

Clean audio first, then the rest of the edit

  1. 1Remove the silences here and download the clean WAV
  2. 2Make your subtitles (SRT) from the clean file with SRT Maker, so every timestamp matches
  3. 3Build the timeline with Sync for CapCut