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Consistency regularization is a commonly used practice to encourage the model to generate consistent representation from distorted input features and improve model generalization. It shows significant improvement on various speech…

Computation and Language · Computer Science 2024-11-12 Cindy Tseng , Yun Tang , Vijendra Raj Apsingekar

In this work, we exploit speech enhancement for improving a recurrent neural network transducer (RNN-T) based ASR system. We employ a dense convolutional recurrent network (DCRN) for complex spectral mapping based speech enhancement, and…

Sound · Computer Science 2020-11-10 Ashutosh Pandey , Chunxi Liu , Yun Wang , Yatharth Saraf

In this work, we propose a novel and efficient minimum word error rate (MWER) training method for RNN-Transducer (RNN-T). Unlike previous work on this topic, which performs on-the-fly limited-size beam-search decoding and generates…

Audio and Speech Processing · Electrical Eng. & Systems 2020-07-29 Jinxi Guo , Gautam Tiwari , Jasha Droppo , Maarten Van Segbroeck , Che-Wei Huang , Andreas Stolcke , Roland Maas

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…

The Recurrent Neural Network-Transducer (RNN-T) is widely adopted in end-to-end (E2E) automatic speech recognition (ASR) tasks but depends heavily on large-scale, high-quality annotated data, which are often costly and difficult to obtain.…

Computation and Language · Computer Science 2025-11-07 Dongji Gao , Chenda Liao , Changliang Liu , Matthew Wiesner , Leibny Paola Garcia , Daniel Povey , Sanjeev Khudanpur , Jian Wu

Adaption of end-to-end speech recognition systems to new tasks is known to be challenging. A number of solutions have been proposed which apply external language models with various fusion methods, possibly with a combination of two-pass…

Computation and Language · Computer Science 2021-06-10 Janne Pylkkönen , Antti Ukkonen , Juho Kilpikoski , Samu Tamminen , Hannes Heikinheimo

Recent studies on semi-supervised semantic segmentation (SSS) have seen fast progress. Despite their promising performance, current state-of-the-art methods tend to increasingly complex designs at the cost of introducing more network…

Computer Vision and Pattern Recognition · Computer Science 2022-12-12 Zhen Zhao , Lihe Yang , Sifan Long , Jimin Pi , Luping Zhou , Jingdong Wang

In this paper, we propose a new adversarial augmentation method for Neural Machine Translation (NMT). The main idea is to minimize the vicinal risk over virtual sentences sampled from two vicinity distributions, of which the crucial one is…

Computation and Language · Computer Science 2020-07-06 Yong Cheng , Lu Jiang , Wolfgang Macherey , Jacob Eisenstein

One of limitations in end-to-end automatic speech recognition (ASR) framework is its performance would be compromised if train-test utterance lengths are mismatched. In this paper, we propose an on-the-fly random utterance concatenation…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-26 Yist Y. Lin , Tao Han , Haihua Xu , Van Tung Pham , Yerbolat Khassanov , Tze Yuang Chong , Yi He , Lu Lu , Zejun Ma

Deep neural networks have become popular in many supervised learning tasks, but they may suffer from overfitting when the training dataset is limited. To mitigate this, many researchers use data augmentation, which is a widely used and…

Machine Learning · Computer Science 2022-05-27 Jianhan Wu , Shijing Si , Jianzong Wang , Jing Xiao

Advanced neural network models have penetrated Automatic Speech Recognition (ASR) in recent years, however, in language modeling many systems still rely on traditional Back-off N-gram Language Models (BNLM) partly or entirely. The reason…

Audio and Speech Processing · Electrical Eng. & Systems 2020-09-04 Balázs Tarján , György Szaszák , Tibor Fegyó , Péter Mihajlik

Recent advances in text-to-speech (TTS) led to the development of flexible multi-speaker end-to-end TTS systems. We extend state-of-the-art attention-based automatic speech recognition (ASR) systems with synthetic audio generated by a TTS…

Computation and Language · Computer Science 2020-02-18 Nick Rossenbach , Albert Zeyer , Ralf Schlüter , Hermann Ney

Speech applications dealing with conversations require not only recognizing the spoken words, but also determining who spoke when. The task of assigning words to speakers is typically addressed by merging the outputs of two separate…

Computation and Language · Computer Science 2019-07-12 Laurent El Shafey , Hagen Soltau , Izhak Shafran

We propose an on-the-fly data augmentation method for automatic speech recognition (ASR) that uses alignment information to generate effective training samples. Our method, called Aligned Data Augmentation (ADA) for ASR, replaces…

Computation and Language · Computer Science 2023-06-13 Tsz Kin Lam , Mayumi Ohta , Shigehiko Schamoni , Stefan Riezler

End-to-end (E2E) systems for automatic speech recognition (ASR), such as RNN Transducer (RNN-T) and Listen-Attend-Spell (LAS) blend the individual components of a traditional hybrid ASR system - acoustic model, language model, pronunciation…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-14 Mahaveer Jain , Gil Keren , Jay Mahadeokar , Geoffrey Zweig , Florian Metze , Yatharth Saraf

Deep Neural Networks (DNNs) are extensively used in collaborative filtering due to their impressive effectiveness. These systems depend on interaction data to learn user and item embeddings that are crucial for recommendations. However, the…

Information Retrieval · Computer Science 2025-05-06 Yuying Zhao , Xiaodong Yang , Huiyuan Chen , Xiran Fan , Yu Wang , Yiwei Cai , Tyler Derr

Convolutional Neural Networks (CNNs) are effective models for reducing spectral variations and modeling spectral correlations in acoustic features for automatic speech recognition (ASR). Hybrid speech recognition systems incorporating CNNs…

Computation and Language · Computer Science 2017-01-11 Ying Zhang , Mohammad Pezeshki , Philemon Brakel , Saizheng Zhang , Cesar Laurent Yoshua Bengio , Aaron Courville

Previous works on the Recurrent Neural Network-Transducer (RNN-T) models have shown that, under some conditions, it is possible to simplify its prediction network with little or no loss in recognition accuracy (arXiv:2003.07705 [eess.AS],…

Computation and Language · Computer Science 2021-09-17 Rami Botros , Tara N. Sainath , Robert David , Emmanuel Guzman , Wei Li , Yanzhang He

Recently, language identity information has been utilized to improve the performance of end-to-end code-switching (CS) speech recognition. However, previous works use an additional language identification (LID) model as an auxiliary module,…

Computation and Language · Computer Science 2020-02-20 Shuai Zhang , Jiangyan Yi , Zhengkun Tian , Jianhua Tao , Ye Bai

We propose Chunk-wise Attention Transducer (CHAT), a novel extension to RNN-T models that processes audio in fixed-size chunks while employing cross-attention within each chunk. This hybrid approach maintains RNN-T's streaming capability…

Machine Learning · Computer Science 2026-03-02 Hainan Xu , Vladimir Bataev , Travis M. Bartley , Jagadeesh Balam