Merge pull request #528 from alibaba-damo-academy/dev_lhn

hnluo

2023-05-18 a0dd94ac7e8506d1674c50f6378d1e0e3acef596

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