Merge pull request #484 from alibaba-damo-academy/dev_sx

zhifu gao

2023-05-10 4d8a1c189a6e3db083a94ed065f576c7e1787197

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