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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
Pull the audio track out of a video.

Extract Audio

Extract the audio track from a video file and save it as MP3, WAV, M4A, or OGG.

API Endpoint

POST /api/v1/tools/video/extract-audio

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

Parameters

Parameter	Type	Required	Default	Description
format	string	No	`"mp3"`	Output audio format: `mp3`, `wav`, `m4a`, `ogg`

Example Request

curl -X POST http://localhost:1349/api/v1/tools/video/extract-audio \
  -H "Authorization: Bearer si_your-api-key" \
  -F "file=@clip.mp4" \
  -F 'settings={"format": "mp3"}'

Example Response

{
  "jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
  "downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/clip.mp3",
  "originalSize": 12500000,
  "processedSize": 3200000
}

Notes

If the video has no audio track, the request returns a 400 error.
MP3 is lossy but widely compatible. WAV is lossless but large. M4A (AAC) offers a good balance of quality and size. OGG is available for open codec workflows.
When the source audio is already AAC and the output format is M4A, the audio stream is copied without re-encoding.

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