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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
Reduce background noise from audio with FFT-based denoising.

Noise Reduction

Reduce background noise in an audio file using FFT-based denoising with selectable strength.

API Endpoint

POST /api/v1/tools/audio/noise-reduction

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

Parameters

Parameter	Type	Required	Default	Description
strength	string	No	`"medium"`	Denoising strength: `light`, `medium`, `strong`

Example Request

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

Example Response

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

Notes

light preserves more detail but removes less noise. strong removes more noise but may introduce subtle artifacts.
Best results on recordings with consistent background noise (fan hum, air conditioning, static).
Output format matches the input format.

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