general punc model conversion onnx, fix bug

九耳

2023-03-29 bf918fe311aa1271abcdabf0157a53b71b45906e

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beam_size: 10
penalty: 0.0
maxlenratio: 0.0
minlenratio: 0.0
ctc_weight: 1.0
lm_weight: 0.7