Merge branch 'dev_lyh' into main

yhliang

2023-04-18 15b8b7bd20d3bb76e933fd2426052c19a0c6ea56

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