Merge pull request #577 from alibaba-damo-academy/dev_lhn3

hnluo

2023-06-01 6aa22ea3806ae19e8c497109d2218b9b8b194928

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