* disable speed perturbation by default
* minor fixes
* minor updates
* updated bash scripts to incorporate with the `speed-perturb` arg
* minor fixes
1. changed the naming scheme from `speed-perturb` to `perturb-speed` to align with the librispeech recipe
>> 00256a7669/egs/librispeech/ASR/local/compute_fbank_librispeech.py (L65)
2. changed arg type for `perturb-speed` to str2bool
* add multiprocessing for wenetspeech text segmentation
* Fix preparing char based lang for wenetspeech
* fix style
Co-authored-by: WeijiZhuang <zhuangweiji@xiaomi.com>
* add other decoding methods for wenetspeech
* changes for RESULTS.md
* add ngram-lm-scale=0.35 results
* set ngram-lm-scale=0.35 as default
* Update README.md
* add nbest-scale for flie name
* add char-based pruned-rnnt2 for wenetspeech
* style check
* style check
* change for export.py
* do some changes
* do some changes
* a small change for .flake8
* solve the conflicts