Sinovoice-2014-01-13

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2014年1月13日 (一) 07:11Wangd讨论 | 贡献的版本

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Project management

  • Xiaoming and Xiao Na were added into the mail list
  • Potential Huawei conference-transcribing project was discussed

DNN training

Environment setting

  • New disk space (3T) was created and mounted at /nfs/disk1
  • Jobs with 100 threads work fine on the cluster

Corpora

  • 60 hour data were cut this week
  • Just send out to vendors for labeling
  • Waiting for out-source platform construction
  • We assume 60 hour data per week in future

470 hour 8k training

  • CE training done
  • MPE training partially done
Model CE MPE1 MPE2 MPE3 MPE4
4k states 23.27/22.85 21.35/18.87 21.18/18.76 21.07/18.54
8k states 22.16/22.22 - 20.36/17.94 -

6000 hour 16k training

  • Audio files ready. Files with incorrect sampling rates were removed
  • Lexicon and LM were ready
  • Making MFCC features
  • Initial model (6 iterations etc) can be delivered before the spring holiday

DNN Decoder

  • Initial trail of DNN decoder based on the Sinovoice code was failed, largely due to FST compiler
  • Change the strategy to an integrated approach: use the sinovoice system to control connections, and use Kaldi base for asr engine
  • Xiaoming will do some investigation on the Sinovoice FST compiler, while Liu Chao will focus on the Kaldi-based decoder