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fix(audio): expose sample rate setting in Convert Audio (#561)
The Convert Audio tool promised configurable bitrate, sample rate, and channel count, but only format and bitrate were exposed. Adds an optional sampleRate setting (8000 to 96000 Hz, omitted = preserve source) wired through the Zod schema, the FFmpeg -ar flag, the standalone settings panel, and the pipeline builder controls. Impossible combinations fail loudly instead of degrading silently: MP3 + 96000 Hz is rejected (libmp3lame caps at 48 kHz), and MP3 bitrates above the encoder ceiling at low rates (64 kbps at 8 kHz, 160 kbps at 16/22.05 kHz) are rejected rather than clamped. The UI offers only legal combinations and sanitizes stored pipeline settings on load. Docs updated in English plus all 20 localized pages with refreshed i18n_source_hash stamps; two new UI strings added to all 21 locales. Fixes #558
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@@ -1,13 +1,13 @@
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---
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description: "在 MP3、WAV、OGG、FLAC 與 M4A 格式之間轉換音訊。"
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i18n_source_hash: fd02c059e6a9
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i18n_source_hash: 27fd2f49f472
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i18n_provenance: human
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i18n_output_hash: b364a00de332
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---
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# 轉換音訊 {#convert-audio}
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在常見格式之間轉換音訊檔案,包含 MP3、WAV、OGG、FLAC 與 M4A,並可設定輸出位元率。
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在常見格式之間轉換音訊檔案,包含 MP3、WAV、OGG、FLAC 與 M4A,並可設定輸出位元率與取樣率。
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## API 端點 {#api-endpoint}
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@@ -21,6 +21,7 @@ i18n_output_hash: b364a00de332
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|-----------|------|----------|---------|-------------|
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| format | string | No | `"mp3"` | 輸出格式:`mp3`、`wav`、`ogg`、`flac`、`m4a` |
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| bitrateKbps | integer | No | `192` | 輸出位元率(kbps)(32 至 320) |
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| sampleRate | integer | No | 原始取樣率 | 輸出取樣率(Hz):`8000`、`16000`、`22050`、`32000`、`44100`、`48000` 或 `96000`。省略則保留原始取樣率 |
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## 範例請求 {#example-request}
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@@ -28,7 +29,7 @@ i18n_output_hash: b364a00de332
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curl -X POST http://localhost:1349/api/v1/tools/audio/convert-audio \
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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={"format": "flac", "bitrateKbps": 256}'
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-F 'settings={"format": "mp3", "bitrateKbps": 192, "sampleRate": 44100}'
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```
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## 範例回應 {#example-response}
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@@ -36,9 +37,9 @@ curl -X POST http://localhost:1349/api/v1/tools/audio/convert-audio \
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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.flac",
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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": 8200000
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"processedSize": 2800000
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}
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```
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@@ -46,4 +47,6 @@ curl -X POST http://localhost:1349/api/v1/tools/audio/convert-audio \
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- 支援的輸入格式包含 MP3、WAV、OGG、FLAC、AAC、M4A、WMA、AIFF 與 OPUS。
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- 位元率只適用於有損格式(MP3、OGG、M4A)。像 WAV 與 FLAC 這類無損格式會忽略此設定。
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- MP3 輸出支援最高 48000 Hz 的取樣率。96000 Hz 選項只適用於 WAV、OGG、FLAC 與 M4A。
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- MP3 位元率的上限取決於取樣率:8000 Hz 時最高 64 kbps,16000 或 22050 Hz 時最高 160 kbps。超過上限的請求會被拒絕,而不會被默默調低。
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- 輸出檔名會保留原始名稱並換上新的副檔名。
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