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Fast contextual adaptation has shown to be effective in improving Automatic Speech Recognition (ASR) of rare words and when combined with an on-device personalized training, it can yield an even better recognition result. However, the…

Audio and Speech Processing · Electrical Eng. & Systems 2021-10-08 Tsendsuren Munkhdalai , Khe Chai Sim , Angad Chandorkar , Fan Gao , Mason Chua , Trevor Strohman , Françoise Beaufays

Conversational speech normally is embodied with loose syntactic structures at the utterance level but simultaneously exhibits topical coherence relations across consecutive utterances. Prior work has shown that capturing longer context…

Computation and Language · Computer Science 2022-06-02 Bi-Cheng Yan , Hsin-Wei Wang , Shih-Hsuan Chiu , Hsuan-Sheng Chiu , Berlin Chen

Multilingual automatic speech recognition (ASR) systems have garnered attention for their potential to extend language coverage globally. While self-supervised learning (SSL) models, like MMS, have demonstrated their effectiveness in…

Computation and Language · Computer Science 2024-04-30 Hongfei Xue , Qijie Shao , Kaixun Huang , Peikun Chen , Jie Liu , Lei Xie

The stream of words produced by Automatic Speech Recognition (ASR) systems is typically devoid of punctuations and formatting. Most natural language processing applications expect segmented and well-formatted texts as input, which is not…

Computation and Language · Computer Science 2017-07-19 Vardaan Pahuja , Anirban Laha , Shachar Mirkin , Vikas Raykar , Lili Kotlerman , Guy Lev

End-to-end (E2E) automatic speech recognition (ASR) methods exhibit remarkable performance. However, since the performance of such methods is intrinsically linked to the context present in the training data, E2E-ASR methods do not perform…

Audio and Speech Processing · Electrical Eng. & Systems 2024-01-22 Yui Sudo , Muhammad Shakeel , Yosuke Fukumoto , Yifan Peng , Shinji Watanabe

It's challenging to customize transducer-based automatic speech recognition (ASR) system with context information which is dynamic and unavailable during model training. In this work, we introduce a light-weight contextual spelling…

Computation and Language · Computer Science 2021-08-29 Xiaoqiang Wang , Yanqing Liu , Sheng Zhao , Jinyu Li

Transformer-based models have demonstrated their effectiveness in automatic speech recognition (ASR) tasks and even shown superior performance over the conventional hybrid framework. The main idea of Transformers is to capture the…

Sound · Computer Science 2022-07-05 Kun Wei , Pengcheng Guo , Ning Jiang

Automatic speech recognition (ASR) is a relevant area in multiple settings because it provides a natural communication mechanism between applications and users. ASRs often fail in environments that use language specific to particular…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-16 Rafael Viana-Cámara , Mario Campos-Soberanis , Diego Campos-Sobrino

In this paper, we analyzed how audio-visual speech enhancement can help to perform the ASR task in a cocktail party scenario. Therefore we considered two simple end-to-end LSTM-based models that perform single-channel audio-visual speech…

Audio and Speech Processing · Electrical Eng. & Systems 2019-11-28 Luca Pasa , Giovanni Morrone , Leonardo Badino

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

Automatic speech recognition (ASR) systems often make unrecoverable errors due to subsystem pruning (acoustic, language and pronunciation models); for example pruning words due to acoustics using short-term context, prior to rescoring with…

Computation and Language · Computer Science 2019-07-01 Prashanth Gurunath Shivakumar , Haoqi Li , Kevin Knight , Panayiotis Georgiou

In interactive automatic speech recognition (ASR) systems, low-latency requirements limit the amount of search space that can be explored during decoding, particularly in end-to-end neural ASR. In this paper, we present a novel streaming…

Audio and Speech Processing · Electrical Eng. & Systems 2024-01-29 Denis Filimonov , Prabhat Pandey , Ariya Rastrow , Ankur Gandhe , Andreas Stolcke

We propose a novel approach for ASR N-best hypothesis rescoring with graph-based label propagation by leveraging cross-utterance acoustic similarity. In contrast to conventional neural language model (LM) based ASR rescoring/reranking…

Audio and Speech Processing · Electrical Eng. & Systems 2024-02-09 Srinath Tankasala , Long Chen , Andreas Stolcke , Anirudh Raju , Qianli Deng , Chander Chandak , Aparna Khare , Roland Maas , Venkatesh Ravichandran

Modern Automatic Speech Recognition (ASR) systems primarily rely on scores from an Acoustic Model (AM) and a Language Model (LM) to rescore the N-best lists. With the abundance of recent natural language processing advances, the information…

Computation and Language · Computer Science 2019-10-28 Yuanfeng Song , Di Jiang , Xuefang Zhao , Qian Xu , Raymond Chi-Wing Wong , Lixin Fan , Qiang Yang

This paper presents an audio visual automatic speech recognition (AV-ASR) system using a Transformer-based architecture. We particularly focus on the scene context provided by the visual information, to ground the ASR. We extract…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-01 Georgios Paraskevopoulos , Srinivas Parthasarathy , Aparna Khare , Shiva Sundaram

Recent progress has been made in using attention based encoder-decoder framework for video captioning. However, most existing decoders apply the attention mechanism to every generated word including both visual words (e.g., "gun" and…

Computer Vision and Pattern Recognition · Computer Science 2017-06-06 Jingkuan Song , Zhao Guo , Lianli Gao , Wu Liu , Dongxiang Zhang , Heng Tao Shen

Improving the representation of contextual information is key to unlocking the potential of end-to-end (E2E) automatic speech recognition (ASR). In this work, we present a novel and simple approach for training an ASR context mechanism with…

Audio and Speech Processing · Electrical Eng. & Systems 2018-10-30 Uri Alon , Golan Pundak , Tara N. Sainath

Automatic Speech Scoring (ASS) is the computer-assisted evaluation of a candidate's speaking proficiency in a language. ASS systems face many challenges like open grammar, variable pronunciations, and unstructured or semi-structured…

Audio and Speech Processing · Electrical Eng. & Systems 2021-09-07 Yaman Kumar Singla , Avykat Gupta , Shaurya Bagga , Changyou Chen , Balaji Krishnamurthy , Rajiv Ratn Shah

Deep neural networks have largely demonstrated their ability to perform automated speech recognition (ASR) by extracting meaningful features from input audio frames. Such features, however, may consist not only of information about the…

Audio and Speech Processing · Electrical Eng. & Systems 2022-09-16 David M. Chan , Shalini Ghosh

Recurrent neural network (RNN) language models (LMs) and Long Short Term Memory (LSTM) LMs, a variant of RNN LMs, have been shown to outperform traditional N-gram LMs on speech recognition tasks. However, these models are computationally…

Machine Learning · Statistics 2017-11-16 Shankar Kumar , Michael Nirschl , Daniel Holtmann-Rice , Hank Liao , Ananda Theertha Suresh , Felix Yu