Automatically detect and mark silent sections in audio files. Visual waveform with highlighted silence regions. Remove all silences at once or export individual segments.
Scan an audio file and find every silent segment automatically. The Silence Detector marks regions where the signal drops below a threshold for longer than a minimum duration you define. Use it to locate gaps in recordings, find chapter breaks, or prepare a file for automatic splitting.
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Detect the tempo (BPM) of any audio file. Includes tap tempo feature and genre reference guide.
Generate beautiful waveform visualizations from audio files. Choose from bars, mirror, line, or circular styles. Customize colors and export as PNG.
Remove background noise and unwanted silence with professional noise gate. Adjust threshold, attack, release, and range parameters. Includes presets for voice, music, and aggressive gating.
A 40-minute interview has long dead-air gaps you want to find and trim.
Input
interview.wav · threshold −40 dB · min length 1.5 s
Detected silences
00:03:12 → 00:03:19 (7.0 s) 00:11:48 → 00:11:51 (3.2 s) … 9 segments, ~46 s total
Spans below the threshold for longer than the minimum are listed with timestamps so you can jump straight to each gap (or auto-remove them), instead of scrubbing the whole file. Tuning the threshold avoids cutting quiet speech.
Scan an audio file and find every silent segment automatically. The Silence Detector marks regions where the signal drops below a threshold for longer than a minimum duration you define. Use it to locate gaps in recordings, find chapter breaks, or prepare a file for automatic splitting.
Detect long pauses that mark chapter boundaries and split the file at those points.
Quickly find and review gaps or dead air in an interview or lecture recording.
Remove leading and trailing silence from batches of audio files in one pass.
It depends on your recording. Start around -40 dB for typical room noise. If too much is flagged, lower the threshold; if silence is missed, raise it.
Yes. After detection, you can choose to strip the silent regions and export a tightened version of the audio.
Audio is decoded and processed locally with the Web Audio API. Your files are never uploaded to a server.