Merge pull request #740 from alibaba-damo-academy/dev_wjm

hnluo

2023-07-13 105fbae3882411d4e464a69ae1906996fb95ca8b

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beam_size: 5
penalty: 0.0
maxlenratio: 0.0
minlenratio: 0.0
ctc_weight: 0.5
lm_weight: 0.7