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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
Convert between mono and stereo or swap left and right channels.

Audio Channels

Convert audio between mono and stereo layouts, or swap the left and right channels of a stereo file.

API Endpoint

POST /api/v1/tools/audio/audio-channels

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

Parameters

Parameter	Type	Required	Default	Description
mode	string	Yes	-	Channel operation: `stereo-to-mono`, `mono-to-stereo`, `swap`

Example Request

curl -X POST http://localhost:1349/api/v1/tools/audio/audio-channels \
  -H "Authorization: Bearer si_your-api-key" \
  -F "file=@audio.mp3" \
  -F 'settings={"mode": "stereo-to-mono"}'

Example Response

{
  "jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
  "downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/audio.mp3",
  "originalSize": 4500000,
  "processedSize": 2300000
}

Notes

stereo-to-mono mixes both channels into a single mono track.
mono-to-stereo duplicates the mono channel to both left and right.
swap exchanges the left and right channels of a stereo file.
Output format matches the input format.

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