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SnapOtter d24e244af4 docs: organize tool pages by modality under /tools/<modality>/

Move all 157 tool pages into image/video/audio/pdf/data subfolders so URLs read /tools/<modality>/<id> (e.g. /tools/image/crop). Nest the image sub-categories under an Image group in the sidebar so the nav reads by modality. Add public/_redirects (301, clean + .html forms) mapping every old flat /tools/<id> URL to its new path so inbound links keep working. Rewrite all internal /tools links. Verified with a clean docs build (no dead links).

2026-06-18 14:12:28 +08:00

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description

description
Speed up or slow down audio playback with a multiplier.

Audio Speed

Speed up or slow down audio playback by applying a speed multiplier.

API Endpoint

POST /api/v1/tools/audio/audio-speed

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

Parameters

Parameter	Type	Required	Default	Description
factor	number	No	`1.5`	Speed multiplier (0.25 to 4). Values below 1 slow down; above 1 speed up.

Example Request

curl -X POST http://localhost:1349/api/v1/tools/audio/audio-speed \
  -H "Authorization: Bearer si_your-api-key" \
  -F "file=@audio.mp3" \
  -F 'settings={"factor": 2}'

Example Response

{
  "jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
  "downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/audio.mp3",
  "originalSize": 4500000,
  "processedSize": 2250000
}

Notes

A factor of 0.25 plays at quarter speed (4x longer). A factor of 4 plays at quadruple speed (4x shorter).
Pitch changes proportionally with speed. Use pitch-shift if you need to adjust pitch independently.
Output format matches the input format.

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