for cpp ws srv long wav core dump (#829)

zhaomingwork

2023-08-10 c8465832cdc8eeb4a22c72af85c71f2d3b7c0e47

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beam_size: 5
penalty: 0.0
maxlenratio: 0.0
minlenratio: 0.0
ctc_weight: 0.3
lm_weight: 0.0