Merge pull request #538 from alibaba-damo-academy/dev_aky2

aky15

2023-05-23 584d0bc0ebb0de360c8cc3c05c26e376b943fefa

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beam_size: 1
penalty: 0.0
maxlenratio: 0.0
minlenratio: 0.0
ctc_weight: 0.0
lm_weight: 0.15