Merge pull request #565 from alibaba-damo-academy/dev_zly2

hnluo

2023-05-31 94bee9029208762468399100654119b7004e769f

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