Volume Adjust
Increase or decrease the volume of an audio file by applying a fixed gain in decibels.
API Endpoint
POST /api/v1/tools/volume-adjust
Accepts multipart form data with an audio file and a JSON settings field.
Parameters
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
| gainDb | number | No | 3 | Volume adjustment in decibels (-30 to 30) |
Example Request
bash
curl -X POST http://localhost:1349/api/v1/tools/volume-adjust \
-H "Authorization: Bearer si_your-api-key" \
-F "[email protected]" \
-F 'settings={"gainDb": 6}'Example Response
json
{
"jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
"downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/audio.mp3",
"originalSize": 4500000,
"processedSize": 4500000
}Notes
- Positive values increase volume; negative values decrease it.
- Large positive gains can cause clipping. Use normalize-audio for loudness-safe leveling.
- Output format matches the input format.