HALOWERKAudiowerk
trim silence
Finds silent stretches with ffmpeg level detection and shortens each one that exceeds the threshold length. Pauses are shortened to a floor, never removed outright: a pause cut to zero makes the end of one sentence collide with the start of the next, which is a worse defect than the dead air it replaced. The floor defaults to 400 milliseconds, roughly the pause a speaker leaves between sentences, and is settable. Leading and trailing silence are treated separately and can be removed.
POST https://audio.halowerk.com/trim-silenceEingaben
| Feld | Typ | Pflicht | Beschreibung |
|---|---|---|---|
| audio | object | Ja | The recording. Either url or content_base64. |
| threshold_seconds | number | Nein | Pauses longer than this are shortened. |
| keep_seconds | number | Nein | What a shortened pause is left at. Zero makes sentences collide and is allowed but not advised. |
| noise_floor_db | integer | Nein | Level below which audio counts as silence. Raise it for a noisy recording. |
| trim_edges | boolean | Nein | Remove leading and trailing silence completely. |
| output_format | string | Nein | Format of the trimmed file. |
Vollständiges Eingabeschema anzeigen
{
"type": "object",
"required": [
"audio"
],
"additionalProperties": false,
"properties": {
"audio": {
"type": "object",
"additionalProperties": false,
"description": "The recording. Either url or content_base64.",
"properties": {
"url": {
"type": "string",
"maxLength": 2048,
"description": "Public http(s) URL."
},
"content_base64": {
"type": "string",
"maxLength": 12000000,
"description": "The file inline, base64."
}
}
},
"threshold_seconds": {
"type": "number",
"minimum": 0.2,
"maximum": 30,
"default": 1.5,
"description": "Pauses longer than this are shortened."
},
"keep_seconds": {
"type": "number",
"minimum": 0,
"maximum": 5,
"default": 0.4,
"description": "What a shortened pause is left at. Zero makes sentences collide and is allowed but not advised."
},
"noise_floor_db": {
"type": "integer",
"minimum": -70,
"maximum": -20,
"default": -35,
"description": "Level below which audio counts as silence. Raise it for a noisy recording."
},
"trim_edges": {
"type": "boolean",
"default": true,
"description": "Remove leading and trailing silence completely."
},
"output_format": {
"type": "string",
"enum": [
"mp3",
"wav",
"flac",
"opus"
],
"default": "mp3",
"description": "Format of the trimmed file."
}
}
}Veröffentlichtes Eingabebeispiel
{
"audio": {},
"threshold_seconds": 1.5,
"keep_seconds": 0.4,
"noise_floor_db": -35,
"trim_edges": true,
"output_format": "mp3"
}Ergebnis & Dokumentation
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Quelle dieser Seite: der veröffentlichte HALOWERK-Katalog. Stand: 2026-11-01, 15:19 UTC.
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