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SnapOtter
d24e244af4
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).
47 lines
1.2 KiB
Markdown
47 lines
1.2 KiB
Markdown
---
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description: Raise or lower audio pitch by semitones without changing speed.
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---
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# Pitch Shift
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Raise or lower the pitch of an audio file by a number of semitones without changing its playback speed.
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## API Endpoint
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`POST /api/v1/tools/audio/pitch-shift`
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Accepts multipart form data with an audio file and a JSON `settings` field.
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## Parameters
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| Parameter | Type | Required | Default | Description |
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|-----------|------|----------|---------|-------------|
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| semitones | integer | No | `3` | Semitones to shift (-12 to 12). Must be nonzero. |
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## Example Request
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```bash
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curl -X POST http://localhost:1349/api/v1/tools/audio/pitch-shift \
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-H "Authorization: Bearer si_your-api-key" \
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-F "file=@audio.mp3" \
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-F 'settings={"semitones": -5}'
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```
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## Example Response
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```json
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{
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"jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
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"downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/audio.mp3",
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"originalSize": 4500000,
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"processedSize": 4500000
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}
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```
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## Notes
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- Positive values raise the pitch; negative values lower it.
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- A shift of 12 semitones equals one octave up; -12 equals one octave down.
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- Playback duration stays the same regardless of the shift amount.
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- Output format matches the input format.
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