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怎样避免Spark-TTS在多语言混合文本中的发音错误?

2025-08-30 1.7 K

处理多语言混合文本的技术方案

当文本中存在中英混合等情况时,需实施以下策略:

前置处理

  • 语言标记:使用XML标签标注语言区间
    <lang code='en'>Hello</lang> 世界
  • automatic detection:集成langid.py库进行语言识别:
    import langid
    langid.classify('你好world') # 返回('en', -54.4)

model level

  • 使用多语言模型:检查仓库是否有multilingual分支
  • 音素转换:将文本统一转为国际音标IPA

后置校正

  • 强制对齐:使用Montreal Forced Aligner检查发音
  • 规则覆盖:创建pronunciation.dict自定义词典

紧急处理方案:
1. 用标点分割不同语言段落
2. 分别生成后使用FFmpeg合并:
ffmpeg -i ch.wav -i en.wav -filter_complex concat=n=2:v=0:a=1 output.wav

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