The Tools of ASR

training or inference

feature

kaldifeat, Feature extraction compatible with Kaldi using PyTorch, supporting CUDA, batch processing, chunk processing, and autograd
kaldiio, kaldiio is an IO utility implemented in pure Python language for several file formats used in kaldi
sentencepiece, SentencePiece is an unsupervised text tokenizer and detokenizer
subword-nmt, preprocessing scripts to segment text into subword units
fastBPE, C++ implementation of Neural Machine Translation of Rare Words with Subword Units, with Python API
dictionaty, a pronunciation lexicon covering both English and Chinese words in a unified phoneset
python-pinyin, 汉字转为拼音
text processing, Inverse Text Normalization & Text Normalization

loss function

warp-ctc, PyTorch bindings for Warp-ctc