SnapOtter/apps/docs/tools/audio/split-audio.md

description

description
Split audio by time intervals, equal parts, or silence detection.

Split Audio

Split an audio file into segments by fixed time intervals, equal parts, or automatic silence detection. Returns a ZIP archive of the segments.

API Endpoint

POST /api/v1/tools/audio/split-audio

Accepts multipart form data with an audio file and a JSON settings field.

Parameters

Parameter	Type	Required	Default	Description
mode	string	No	"time"	Split strategy: time, parts, silence
segmentS	number	No	60	Segment length in seconds, 1 to 3600 (used when mode is time)
parts	integer	No	2	Number of equal parts, 2 to 20 (used when mode is parts)
thresholdDb	number	No	-40	Silence threshold in dB, -80 to -20 (used when mode is silence)
minSilenceS	number	No	0.3	Minimum silence gap in seconds, 0.1 to 10 (used when mode is silence)

Example Request

Split into 30-second segments:

curl -X POST http://localhost:1349/api/v1/tools/audio/split-audio \
  -H "Authorization: Bearer si_your-api-key" \
  -F "file=@audio.mp3" \
  -F 'settings={"mode": "time", "segmentS": 30}'

Split by silence detection:

curl -X POST http://localhost:1349/api/v1/tools/audio/split-audio \
  -H "Authorization: Bearer si_your-api-key" \
  -F "file=@audio.mp3" \
  -F 'settings={"mode": "silence", "thresholdDb": -35, "minSilenceS": 0.5}'

Example Response

{
  "jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
  "downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/audio_parts.zip",
  "originalSize": 4500000,
  "processedSize": 4600000
}

Notes

• The downloadUrl points to a ZIP archive containing all segments.
• Only the parameters relevant to the chosen mode are used; others are ignored.
• Segment filenames are numbered sequentially (e.g. part-000.mp3, part-001.mp3).
• Output format matches the input format.