update paraformer online text postprocess

haoneng.lhn

2023-05-19 27f6d173ec45ce3a31129e5d79b8d0b5c2d227aa

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