Merge pull request #395 from alibaba-damo-academy/dev_zly2

zhifu gao

2023-04-21 3d6347d9bc2bf5d4a98614cb9234d40ff13b8035

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