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SnapOtter/apps/docs/tools/audio/convert-audio.md
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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: Convert audio between MP3, WAV, OGG, FLAC, and M4A formats.
---
# Convert Audio
Convert audio files between common formats including MP3, WAV, OGG, FLAC, and M4A, with configurable output bitrate.
## API Endpoint
`POST /api/v1/tools/audio/convert-audio`
Accepts multipart form data with an audio file and a JSON `settings` field.
## Parameters
| Parameter | Type | Required | Default | Description |
|-----------|------|----------|---------|-------------|
| format | string | No | `"mp3"` | Output format: `mp3`, `wav`, `ogg`, `flac`, `m4a` |
| bitrateKbps | integer | No | `192` | Output bitrate in kbps (32 to 320) |
## Example Request
```bash
curl -X POST http://localhost:1349/api/v1/tools/audio/convert-audio \
-H "Authorization: Bearer si_your-api-key" \
-F "file=@audio.mp3" \
-F 'settings={"format": "flac", "bitrateKbps": 256}'
```
## Example Response
```json
{
"jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
"downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/audio.flac",
"originalSize": 4500000,
"processedSize": 8200000
}
```
## Notes
- Supported input formats include MP3, WAV, OGG, FLAC, AAC, M4A, WMA, AIFF, and OPUS.
- Bitrate only applies to lossy formats (MP3, OGG, M4A). Lossless formats like WAV and FLAC ignore this setting.
- The output filename keeps the original name with the new extension.