[ASR] Basic concepts of speech recognition

Last Updated: 2020-06-11

1. basic concepts of speech recognition: https://cmusphinx.github.io/wiki/tutorialconcepts/

2. CTC explanation (written in Chinese): https://xiaodu.io/ctc-explained/

3. CTC, RNN-T, Neural Transducer, MoCha (written in Chinese): https://zhuanlan.zhihu.com/p/130899095

4. Kaldi如何统计data数据集: [https://www.cnblogs.com/JarvanWang/p/9152628.html] (https://www.cnblogs.com/JarvanWang/p/9152628.html)