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Related papers: Exploring Pre-training with Alignments for RNN Tra…

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In this work, we propose minimum Bayes risk (MBR) training of RNN-Transducer (RNN-T) for end-to-end speech recognition. Specifically, initialized with a RNN-T trained model, MBR training is conducted via minimizing the expected edit…

Computation and Language · Computer Science 2019-12-02 Chao Weng , Chengzhu Yu , Jia Cui , Chunlei Zhang , Dong Yu

Popular solutions to Named Entity Recognition (NER) include conditional random fields, sequence-to-sequence models, or utilizing the question-answering framework. However, they are not suitable for nested and overlapping spans with large…

Computation and Language · Computer Science 2022-03-08 Hagen Soltau , Izhak Shafran , Mingqiu Wang , Laurent El Shafey

Connectionist temporal classification (CTC) based supervised sequence training of recurrent neural networks (RNNs) has shown great success in many machine learning areas including end-to-end speech and handwritten character recognition. For…

Machine Learning · Computer Science 2017-02-03 Kyuyeon Hwang , Wonyong Sung

Recently, there has been an increasing interest in end-to-end speech recognition that directly transcribes speech to text without any predefined alignments. One approach is the attention-based encoder-decoder framework that learns a mapping…

Computation and Language · Computer Science 2017-02-02 Suyoun Kim , Takaaki Hori , Shinji Watanabe

Transfer learning (TL) is widely used in conventional hybrid automatic speech recognition (ASR) system, to transfer the knowledge from source to target language. TL can be applied to end-to-end (E2E) ASR system such as recurrent neural…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-18 Vikas Joshi , Rui Zhao , Rupesh R. Mehta , Kshitiz Kumar , Jinyu Li

We present a training scheme for streaming automatic speech recognition (ASR) based on recurrent neural network transducers (RNN-T) which allows the encoder network to learn to exploit context audio from a stream, using segmented or…

Audio and Speech Processing · Electrical Eng. & Systems 2021-06-16 Andreas Schwarz , Ilya Sklyar , Simon Wiesler

End-to-end model, especially Recurrent Neural Network Transducer (RNN-T), has achieved great success in speech recognition. However, transducer requires a great memory footprint and computing time when processing a long decoding sequence.…

Sound · Computer Science 2023-07-18 Xiaohui Zhang , Mangui Liang , Zhengkun Tian , Jiangyan Yi , Jianhua Tao

In this paper, several works are proposed to address practical challenges for deploying RNN Transducer (RNN-T) based speech recognition system. These challenges are adapting a well-trained RNN-T model to a new domain without collecting the…

Audio and Speech Processing · Electrical Eng. & Systems 2021-07-20 Rui Zhao , Jian Xue , Jinyu Li , Wenning Wei , Lei He , Yifan Gong

Modeling unit and model architecture are two key factors of Recurrent Neural Network Transducer (RNN-T) in end-to-end speech recognition. To improve the performance of RNN-T for Mandarin speech recognition task, a novel transformer…

Audio and Speech Processing · Electrical Eng. & Systems 2020-04-29 Li Fu , Xiaoxiao Li , Libo Zi

In this work, we perform an empirical comparison among the CTC, RNN-Transducer, and attention-based Seq2Seq models for end-to-end speech recognition. We show that, without any language model, Seq2Seq and RNN-Transducer models both…

Computation and Language · Computer Science 2017-07-25 Eric Battenberg , Jitong Chen , Rewon Child , Adam Coates , Yashesh Gaur , Yi Li , Hairong Liu , Sanjeev Satheesh , David Seetapun , Anuroop Sriram , Zhenyao Zhu

The recurrent neural network transducer (RNN-T) has recently become the mainstream end-to-end approach for streaming automatic speech recognition (ASR). To estimate the output distributions over subword units, RNN-T uses a fully connected…

Audio and Speech Processing · Electrical Eng. & Systems 2022-01-26 Chao Zhang , Bo Li , Zhiyun Lu , Tara N. Sainath , Shuo-yiin Chang

This work introduces TTS-Transducer - a novel architecture for text-to-speech, leveraging the strengths of audio codec models and neural transducers. Transducers, renowned for their superior quality and robustness in speech recognition, are…

Audio and Speech Processing · Electrical Eng. & Systems 2025-04-16 Vladimir Bataev , Subhankar Ghosh , Vitaly Lavrukhin , Jason Li

The recurrent neural network transducer (RNN-T) objective plays a major role in building today's best automatic speech recognition (ASR) systems for production. Similarly to the connectionist temporal classification (CTC) objective, the…

Computation and Language · Computer Science 2022-04-01 Niko Moritz , Takaaki Hori , Shinji Watanabe , Jonathan Le Roux

Recently, there has been a strong push to transition from hybrid models to end-to-end (E2E) models for automatic speech recognition. Currently, there are three promising E2E methods: recurrent neural network transducer (RNN-T), RNN…

Audio and Speech Processing · Electrical Eng. & Systems 2020-07-31 Jinyu Li , Yu Wu , Yashesh Gaur , Chengyi Wang , Rui Zhao , Shujie Liu

Machine learning model weights and activations are represented in full-precision during training. This leads to performance degradation in runtime when deployed on neural network accelerator (NNA) chips, which leverage highly parallelized…

The two most popular loss functions for streaming end-to-end automatic speech recognition (ASR) are RNN-Transducer (RNN-T) and connectionist temporal classification (CTC). Between these two loss types we can classify the monotonic RNN-T…

Audio and Speech Processing · Electrical Eng. & Systems 2022-10-25 Niko Moritz , Frank Seide , Duc Le , Jay Mahadeokar , Christian Fuegen

We present a state-of-the-art end-to-end Automatic Speech Recognition (ASR) model. We learn to listen and write characters with a joint Connectionist Temporal Classification (CTC) and attention-based encoder-decoder network. The encoder is…

Computation and Language · Computer Science 2017-06-12 Takaaki Hori , Shinji Watanabe , Yu Zhang , William Chan

Recent studies of streaming automatic speech recognition (ASR) recurrent neural network transducer (RNN-T)-based systems have fed the encoder with past contextual information in order to improve its word error rate (WER) performance. In…

Audio and Speech Processing · Electrical Eng. & Systems 2022-10-31 Alejandro Gomez-Alanis , Lukas Drude , Andreas Schwarz , Rupak Vignesh Swaminathan , Simon Wiesler

The recurrent neural network transducer (RNN-T) is a prominent streaming end-to-end (E2E) ASR technology. In RNN-T, the acoustic encoder commonly consists of stacks of LSTMs. Very recently, as an alternative to LSTM layers, the Conformer…

Extending the RNN Transducer (RNNT) to recognize multi-talker speech is essential for wider automatic speech recognition (ASR) applications. Multi-talker RNNT (MT-RNNT) aims to achieve recognition without relying on costly front-end source…

Audio and Speech Processing · Electrical Eng. & Systems 2024-10-01 Takafumi Moriya , Shota Horiguchi , Marc Delcroix , Ryo Masumura , Takanori Ashihara , Hiroshi Sato , Kohei Matsuura , Masato Mimura