update mfcc infer.sh

yufan-aslp

2023-04-25 cfe22850e2a62071fca0fbdc15bb6e95ca555490

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