Merge branch 'main' into dev_cmz2

zhifu gao

2023-04-07 2e769fb36ce88dabfa984e8b81e8cb1c90799c95

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