Silence / gap finder · audio
Was this recording cut or edited?
Silence is where edits hide. A clean cut, a spliced insert or a removed passage often leaves an unnaturally flat gap. This decodes the audio, draws it as a waveform, and highlights every stretch below a level you choose, listing its start, end and length so you know where to listen.
Runs entirely in your browser. Your file is never uploaded or stored.
Decoding audio…
The grey shape is your recording's waveform from start to finish. Flat, thin stretches are quiet; the orange bands mark the silent gaps found at the settings above.
Why silence matters
Recorded sound is never truly silent; even a quiet room has a floor of hiss, hum and ambience. A patch of true digital silence, or a level that drops far below the surrounding noise floor, is therefore unusual, and it is exactly what an edit can introduce: a cut that removes a section, a gap where two takes were joined, or a muted passage. Listing those gaps by timestamp gives you a map of where to listen closely.
Reading the results
Silence shows up two ways here. On the waveform, a silent stretch is where the grey trace collapses to a thin, flat line at the centre, and every gap the tool counts is painted over that spot as an orange band, so you can see at a glance where the quiet falls. Below the waveform, the same gaps are listed by timestamp, and clicking a row jumps the player to that moment. If nothing is highlighted, the recording simply never drops below your threshold for long enough, which the tool states in words rather than leaving the view blank.
Lower the threshold toward -60 dB to catch only near-total silence, or raise it toward
-30 dB to include quiet passages. The minimum-gap setting hides the tiny pauses between
words so only meaningful stretches remain. A natural recording has gaps that line up with breaths
and sentence breaks; gaps with sharp, flat edges in the middle of speech, or a suspiciously clean
silence, are worth a closer listen.
What it does not decide
A gap is a lead, not a verdict. Pauses are normal and most silences are innocent. This finds where the quiet is; it does not prove an edit. Pair it with the metadata reader and the hidden text scan, and listen to the gaps in context before drawing a conclusion.