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SnapOtter/apps/docs/tools/audio/trim-audio.md
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SnapOtterandGitHub 00b651c9f8 feat(i18n): 21-language pipeline, landing/docs/API wiring, landing+API translations
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.
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---
description: Cut a section out of an audio file by specifying start and end times.
---
# Trim Audio {#trim-audio}
Cut a section out of an audio file by specifying start and end times in seconds.
## API Endpoint {#api-endpoint}
`POST /api/v1/tools/audio/trim-audio`
Accepts multipart form data with an audio file and a JSON `settings` field.
## Parameters {#parameters}
| Parameter | Type | Required | Default | Description |
|-----------|------|----------|---------|-------------|
| startS | number | No | `0` | Start time in seconds (minimum 0) |
| endS | number | Yes | - | End time in seconds (must be after start) |
## Example Request {#example-request}
```bash
curl -X POST http://localhost:1349/api/v1/tools/audio/trim-audio \
-H "Authorization: Bearer si_your-api-key" \
-F "file=@audio.mp3" \
-F 'settings={"startS": 10, "endS": 45}'
```
## Example Response {#example-response}
```json
{
"jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
"downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/audio.mp3",
"originalSize": 4500000,
"processedSize": 1575000
}
```
## Notes {#notes}
- Times are specified in seconds and can include decimals (e.g. `10.5`).
- The `endS` value must be greater than `startS`.
- If `endS` exceeds the audio duration, the file is trimmed to the end.
- Output usually keeps the input container. AAC input is written as M4A, and unsupported decode-only inputs fall back to MP3.