icefall/egs/librispeech/ASR/README.md

Introduction

Please refer to https://icefall.readthedocs.io/en/latest/recipes/librispeech.html for how to run models in this recipe.

Transducers

There are various folders containing the name transducer in this folder. The following table lists the differences among them.

	Encoder	Decoder
transducer	Conformer	LSTM
transducer_stateless	Conformer	Embedding + Conv1d
transducer_lstm	LSTM	LSTM

The decoder in transducer_stateless is modified from the paper Rnn-Transducer with Stateless Prediction Network. We place an additional Conv1d layer right after the input embedding layer.