update raw_text handling

shixian.shi

2024-02-21 571dc8b55a9b036a5b36f968bb3a5baf5858e395

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ID0012W0013 /Users/zhifu/funasr_github/test_local/aishell2_dev_ios/wav/D0012/ID0012W0013.wav
ID0012W0014 /Users/zhifu/funasr_github/test_local/aishell2_dev_ios/wav/D0012/ID0012W0014.wav