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48 lines
1.4 KiB
Markdown
48 lines
1.4 KiB
Markdown
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---
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description: Strip silent sections from an audio file.
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---
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# Silence Removal
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Detect and remove silent sections from an audio file based on a configurable threshold and minimum duration.
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## API Endpoint
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`POST /api/v1/tools/silence-removal`
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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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| thresholdDb | number | No | `-50` | Silence threshold in dB (-80 to -20). Audio below this level is considered silent. |
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| minSilenceS | number | No | `0.5` | Minimum silence duration in seconds to remove (0.1 to 5) |
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## Example Request
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```bash
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curl -X POST http://localhost:1349/api/v1/tools/silence-removal \
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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={"thresholdDb": -45, "minSilenceS": 1}'
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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": 3200000
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}
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```
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## Notes
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- A higher (less negative) threshold is more aggressive and removes quieter passages as well as true silence.
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- Increase `minSilenceS` to only strip longer pauses while keeping short natural gaps.
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- Useful for cleaning up podcast recordings, lectures, and voice memos.
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- Output format matches the input format.
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