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Om det här verktyget
Automatically remove silent gaps from the beginning, end and middle of an audio file. Ideal for tightening up voice recordings, podcasts, screencasts and lecture audio where dead air piles up between sentences.
Privvert uses FFmpeg's silenceremove filter, which lets you tune both the loudness threshold (in decibels) and the minimum silence duration before a gap is cut. The result is shorter, snappier audio - and the original is never touched on disk.
silenceremove walks through the audio sample-by-sample, measuring a short rolling RMS window against your dB threshold. When the level stays below the threshold for at least the minimum duration, those samples are removed entirely - the file gets shorter, not just quieter. The two-pass approach (start + middle + end) means you do not have to run the tool multiple times for different positions.
Funktioner
- Configurable silence threshold in dB (e.g. -40 dB)
- Minimum silence duration in seconds before a cut is made
- Trims leading silence, trailing silence and inner gaps in one pass
- FFmpeg silenceremove filter - broadcaster-grade
- Outputs MP3 at 192 kbps
- 100% browser-side processing
- Free and unlimited
Så använder du det
- Drop in your audio file.
- Set a threshold (start at -40 dB).
- Set the minimum silence length to remove (e.g. 0.5 s).
- Click Process.
- Download the tightened MP3.
Allt sker i din webbläsare med JavaScript och WebAssembly. Dina filer laddas aldrig upp, lagras aldrig och ses aldrig av oss.
Vanliga frågor
Start at -40 dB. If too much speech is being cut, raise it (e.g. -30 dB cuts only obvious silence). If gaps are still left, lower it (-50 dB cuts more aggressively).
Not if the minimum duration is set sensibly. 0.3-0.7 seconds is a safe range - shorter values risk eating breaths and word boundaries.
Yes - set the minimum duration above the natural pause length you want to keep (e.g. 1.0 s preserves dramatic pauses while removing recording dead air).
It's stricter - silenceremove cuts the silent samples out entirely (the file gets shorter), while a noise gate only mutes them (file length unchanged).
Quiet room tone (typically -55 to -45 dB) gets cut along with true silence at default settings. If you need the ambient floor preserved between sentences, lower the threshold to -55 dB so only digital silence is removed.
This tool processes audio only. If the audio came from a video, the trimmed audio will be shorter than the original video - re-attach it in an editor or use the video mute + add-audio workflow instead.