仮想環境

```sh
python -m venv venv
.\venv\Scripts\activate
```


curl https://api.openai.com/v1/audio/transcriptions \
  -H "Authorization: Bearer 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" \
  -F "file=@part_001.m4a" \
  -F "model=gpt-4o-transcribe" \
  -F "response_format=text" \
  -F "language=ja" \
  -o part_001.txt

ffmpeg -i voice.m4a -f segment -segment_time 600 -c copy part_%03d.m4a

# フォーマットを揃える