SnapOtter/apps/docs/tools/audio/noise-reduction.md

description

description
Reduce background noise from audio with FFT-based denoising.

Noise Reduction

Reduce background noise in an audio file using FFT-based denoising with selectable strength.

API Endpoint

POST /api/v1/tools/audio/noise-reduction

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

Parameters

Parameter	Type	Required	Default	Description
strength	string	No	"medium"	Denoising strength: light, medium, strong

Example Request

curl -X POST http://localhost:1349/api/v1/tools/audio/noise-reduction \
  -H "Authorization: Bearer si_your-api-key" \
  -F "file=@audio.mp3" \
  -F 'settings={"strength": "strong"}'

Example Response

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

Notes

• light preserves more detail but removes less noise. strong removes more noise but may introduce subtle artifacts.
• Best results on recordings with consistent background noise (fan hum, air conditioning, static).
• Output format matches the input format.