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SnapOtterandGitHub
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Shared Claude Code translation pipeline (scripts/i18n, no API key) plus Astro/VitePress/Scalar i18n wiring. Landing and API reference translated into all 20 languages; docs i18n wiring + English source anchors. The translated docs markdown (apps/docs/<locale>/**, 3,620 files) follows in a companion PR because it exceeds GitHub's per-PR CI file limit.
46 lines
1.4 KiB
Markdown
46 lines
1.4 KiB
Markdown
---
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description: Speed up or slow down audio playback with a multiplier.
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---
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# Audio Speed {#audio-speed}
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Speed up or slow down audio playback by applying a speed multiplier.
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## API Endpoint {#api-endpoint}
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`POST /api/v1/tools/audio/audio-speed`
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Accepts multipart form data with an audio file and a JSON `settings` field.
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## Parameters {#parameters}
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| Parameter | Type | Required | Default | Description |
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|-----------|------|----------|---------|-------------|
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| factor | number | No | `1.5` | Speed multiplier (0.25 to 4). Values below 1 slow down; above 1 speed up. |
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## Example Request {#example-request}
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```bash
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curl -X POST http://localhost:1349/api/v1/tools/audio/audio-speed \
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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={"factor": 2}'
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```
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## Example Response {#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": 2250000
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}
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```
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## Notes {#notes}
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- A factor of `0.25` plays at quarter speed (4x longer). A factor of `4` plays at quadruple speed (4x shorter).
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- Pitch is preserved while speed changes (time-stretch). Use pitch-shift to adjust pitch independently.
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- Output usually keeps the input container. AAC input is written as M4A, and unsupported decode-only inputs fall back to MP3.
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