Remove Silence and Dead Air from Audio
Long silent gaps, dead air and pauses pad out a recording. This tool detects and removes those silences automatically, shortening the file without touching the speech.
How it works
We scan for stretches below a quiet threshold lasting longer than a set duration and cut them out, leaving natural short pauses intact. The spoken content is unchanged; the file just gets tighter.
What it's good for
- Podcast and lecture trimming
- Removing setup dead-air
- Compressing long meetings
- Voicemail and memo cleanup
Details
- Engine
- DSP
- Formats
- MP3, WAV, M4A, FLAC, OGG, AAC, MP4, MOV
- Price
- Free to try
Frequently asked questions
Only silences longer than the threshold are removed and brief natural pauses are kept, so the result sounds tightened, not chipmunked.
On rambling or gap-heavy recordings it commonly trims a noticeable chunk of runtime, which also reduces upload and listening time.
Silence removal deletes long quiet gaps; filler-word removal targets the short hesitation spaces around "um/uh". Use both for the tightest edit.
It uses voice-activity detection to mark stretches that fall below a quiet threshold for longer than a minimum duration, then removes only those. Short natural pauses between sentences stay intact.
Sustained music sits above the silence threshold, so it is treated as content and kept. Only genuinely quiet dead-air gets removed, not your bed music or stingers.
No transcription happens and the speech itself is never altered. The tool only deletes the silent gaps between words, so every word you recorded is still there.
Yes, and that is where it pays off most. Hour-long meetings and lectures with lots of setup pauses and dead-air compress noticeably, cutting both runtime and upload size.
Denoise or transcription-cleanup first so the quiet sections are truly quiet, then run silence removal so the detector isn't fooled by background hiss sitting above the threshold.