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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
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. At least one must be greater than 0.
The fade duration is clamped to the audio length if it exceeds it.
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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