Merge pull request #322 from alibaba-damo-academy/dev_wjm2

zhifu gao

2023-03-31 2a69e1984b143cd9e5f9c1d05071a7ef27f27a46

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beam_size: 10
penalty: 0.0
maxlenratio: 0.0
minlenratio: 0.0
ctc_weight: 0.5
lm_weight: 0.7