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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.

2026-07-11 13:01:55 +08:00

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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 usually keeps the input container. AAC input is written as M4A, and unsupported decode-only inputs fall back to MP3.

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