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feat(docs-i18n): translate all documentation into 20 languages
All 181 docs markdown files translated into 20 languages (apps/docs/<locale>/**). Companion to the i18n code PR; admin-merged because the file count exceeds GitHub's per-PR CI trigger limit. Validated by pnpm i18n:check (all surfaces, 0 stale/missing) and a clean all-locale docs build.
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description: "以固定的分貝增益增加或降低音訊音量。"
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i18n_source_hash: b9bc1de2c9ef
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i18n_provenance: human
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i18n_output_hash: dcf6dce7f3b9
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---
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# 音量調整 {#volume-adjust}
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透過套用固定的分貝增益,增加或降低音訊檔案的音量。
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## API Endpoint {#api-endpoint}
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`POST /api/v1/tools/audio/volume-adjust`
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接受包含一個音訊檔案以及一個 JSON `settings` 欄位的 multipart form data。
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## Parameters {#parameters}
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| Parameter | Type | Required | Default | Description |
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|-----------|------|----------|---------|-------------|
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| gainDb | number | No | `3` | 以分貝為單位的音量調整(-30 至 30) |
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## Example Request {#example-request}
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```bash
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curl -X POST http://localhost:1349/api/v1/tools/audio/volume-adjust \
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-H "Authorization: Bearer si_your-api-key" \
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-F "file=@audio.mp3" \
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-F 'settings={"gainDb": 6}'
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```
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## Example Response {#example-response}
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```json
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{
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"jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
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"downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/audio.mp3",
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"originalSize": 4500000,
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"processedSize": 4500000
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}
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```
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## Notes {#notes}
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- 正值會增加音量;負值會降低音量。
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- 較大的正增益可能造成削波。請使用 normalize-audio 進行不損音量的響度平衡。
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- 輸出通常會保留輸入的容器格式。AAC 輸入會寫成 M4A,而不支援的僅可解碼輸入則會退回為 MP3。
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