Merge pull request #386 from alibaba-damo-academy/dev_sx

Lizerui9926

2023-04-20 aa54e65287ff99ab364bc9893bff79900c8c4cc8

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