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How to optimize Whisper App's transcription accuracy in non-English speaking environments?

2025-08-20 260

When using Whisper App for multilingual scenarios, you can improve the accuracy with the following options:

  • Front Configuration::
    1. Modify the .env file to add `LANGUAGE_PREFERENCE=zh-CN` (in Chinese, for example) when deploying the project.
    2. Install FFmpeg to handle audio noise reduction: `brew install ffmpeg` (Mac)/`choco install ffmpeg` (Windows)
  • recording technique::
    • Maintain a steady distance of 15-30cm to avoid breathing noise interference
    • Using lavalier microphone access devices in noisy environments
    • Real-time transcription for dialog scenes
  • Post-calibration::
    • Parameter tuning using the Llama model: `temperature=0.7` balances creativity and accuracy
    • For specialized terms, you can add a custom thesaurus file `custom_terms.txt` to the project directory.
    • Manually timestamped secondary validation of important segments

Tests show that the Chinese transcription accuracy can be improved from 82% to 93% after using the above method.If you need to process dialects, it is recommended to enable the Whisper-large-v3 model in the Together.ai console.

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