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SnapOtter/apps/docs/tools/audio/fade-audio.md
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description
description
Add fade-in and fade-out effects to audio.

Fade Audio

Add fade-in and fade-out effects to the beginning and end of an audio file.

API Endpoint

POST /api/v1/tools/audio/fade-audio

Accepts multipart form data with an audio file and a JSON settings field.

Parameters

Parameter Type Required Default Description
fadeInS number No 1 Fade-in duration in seconds (0 to 30)
fadeOutS number No 1 Fade-out duration in seconds (0 to 30)

Example Request

curl -X POST http://localhost:1349/api/v1/tools/audio/fade-audio \
  -H "Authorization: Bearer si_your-api-key" \
  -F "file=@audio.mp3" \
  -F 'settings={"fadeInS": 2, "fadeOutS": 3}'

Example Response

{
  "jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
  "downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/audio.mp3",
  "originalSize": 4500000,
  "processedSize": 4500000
}

Notes

  • Set either value to 0 to skip that fade direction.
  • The fade duration should not exceed the audio length.
  • Output format matches the input format.