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In this work, we propose a streaming AV-ASR system based on a hybrid connectionist temporal classification (CTC)/attention neural network architecture. The audio and the visual encoder neural networks are both based on the conformer…

Audio and Speech Processing · Electrical Eng. & Systems 2023-07-04 Pingchuan Ma , Niko Moritz , Stavros Petridis , Christian Fuegen , Maja Pantic

This article describes an efficient end-to-end speech translation (E2E-ST) framework based on non-autoregressive (NAR) models. End-to-end speech translation models have several advantages over traditional cascade systems such as inference…

Audio and Speech Processing · Electrical Eng. & Systems 2021-09-10 Hirofumi Inaguma , Yosuke Higuchi , Kevin Duh , Tatsuya Kawahara , Shinji Watanabe

End-to-end approaches for automatic speech recognition (ASR) benefit from directly modeling the probability of the word sequence given the input audio stream in a single neural network. However, compared to conventional ASR systems, these…

Audio and Speech Processing · Electrical Eng. & Systems 2020-02-19 Ankur Gandhe , Ariya Rastrow

In this paper, a multilingual end-to-end framework, called as ATCSpeechNet, is proposed to tackle the issue of translating communication speech into human-readable text in air traffic control (ATC) systems. In the proposed framework, we…

Computation and Language · Computer Science 2021-02-18 Yi Lin , Bo Yang , Linchao Li , Dongyue Guo , Jianwei Zhang , Hu Chen , Yi Zhang

End-to-end automatic speech recognition (ASR), unlike conventional ASR, does not have modules to learn the semantic representation from speech encoder. Moreover, the higher frame-rate of speech representation prevents the model to learn the…

Artificial Intelligence · Computer Science 2021-03-19 Md Akmal Haidar , Chao Xing , Mehdi Rezagholizadeh

End-to-end (E2E) automatic speech recognition (ASR) can operate in two modes: streaming and non-streaming, each with its pros and cons. Streaming ASR processes the speech frames in real-time as it is being received, while non-streaming ASR…

Audio and Speech Processing · Electrical Eng. & Systems 2024-09-12 Muhammad Shakeel , Yui Sudo , Yifan Peng , Shinji Watanabe

Deploying high-quality automatic speech recognition (ASR) on edge devices requires models that jointly optimize accuracy, latency, and memory footprint while operating entirely on CPU without GPU acceleration. We conduct a systematic…

Artificial Intelligence · Computer Science 2026-04-21 Nenad Banfic , David Fan , Kunal Vaishnavi , Sam Kemp , Sunghoon Choi , Rui Ren , Sayan Shaw , Meng Tang

The Transformer self-attention network has recently shown promising performance as an alternative to recurrent neural networks (RNNs) in end-to-end (E2E) automatic speech recognition (ASR) systems. However, the Transformer has a drawback in…

Audio and Speech Processing · Electrical Eng. & Systems 2019-10-17 Emiru Tsunoo , Yosuke Kashiwagi , Toshiyuki Kumakura , Shinji Watanabe

Recently, online end-to-end ASR has gained increasing attention. However, the performance of online systems still lags far behind that of offline systems, with a large gap in quality of recognition. For specific scenarios, we can trade-off…

Sound · Computer Science 2020-10-28 Zhifu Gao , Shiliang Zhang , Ming Lei , Ian McLoughlin

End-to-end (E2E) models have shown to outperform state-of-the-art conventional models for streaming speech recognition [1] across many dimensions, including quality (as measured by word error rate (WER)) and endpointer latency [2]. However,…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-12 Bo Li , Anmol Gulati , Jiahui Yu , Tara N. Sainath , Chung-Cheng Chiu , Arun Narayanan , Shuo-Yiin Chang , Ruoming Pang , Yanzhang He , James Qin , Wei Han , Qiao Liang , Yu Zhang , Trevor Strohman , Yonghui Wu

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

Streaming automatic speech recognition (ASR) aims to emit each hypothesized word as quickly and accurately as possible, while full-context ASR waits for the completion of a full speech utterance before emitting completed hypotheses. In this…

Computation and Language · Computer Science 2021-01-28 Jiahui Yu , Wei Han , Anmol Gulati , Chung-Cheng Chiu , Bo Li , Tara N. Sainath , Yonghui Wu , Ruoming Pang

Language identification is critical for many downstream tasks in automatic speech recognition (ASR), and is beneficial to integrate into multilingual end-to-end ASR as an additional task. In this paper, we propose to modify the structure of…

Audio and Speech Processing · Electrical Eng. & Systems 2022-09-14 Chao Zhang , Bo Li , Tara Sainath , Trevor Strohman , Sepand Mavandadi , Shuo-yiin Chang , Parisa Haghani

Recent research shows end-to-end ASR systems can recognize overlapped speech from multiple speakers. However, all published works have assumed no latency constraints during inference, which does not hold for most voice assistant…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-22 Ilya Sklyar , Anna Piunova , Yulan Liu

Attention-based sequence-to-sequence automatic speech recognition (ASR) requires a significant delay to recognize long utterances because the output is generated after receiving entire input sequences. Although several studies recently…

Computation and Language · Computer Science 2020-11-05 Sashi Novitasari , Andros Tjandra , Sakriani Sakti , Satoshi Nakamura

Automatic speech recognition (ASR) systems are primarily evaluated on transcription accuracy. However, in some use cases such as subtitling, verbatim transcription would reduce output readability given limited screen size and reading time.…

Computation and Language · Computer Science 2020-05-26 Danni Liu , Jan Niehues , Gerasimos Spanakis

In this paper, we present a novel two-pass approach to unify streaming and non-streaming end-to-end (E2E) speech recognition in a single model. Our model adopts the hybrid CTC/attention architecture, in which the conformer layers in the…

Sound · Computer Science 2021-12-30 Binbin Zhang , Di Wu , Zhuoyuan Yao , Xiong Wang , Fan Yu , Chao Yang , Liyong Guo , Yaguang Hu , Lei Xie , Xin Lei

Modern non-autoregressive~(NAR) speech recognition systems aim to accelerate the inference speed; however, they suffer from performance degradation compared with autoregressive~(AR) models as well as the huge model size issue. We propose a…

Sound · Computer Science 2022-07-22 Xun Gong , Zhikai Zhou , Yanmin Qian

With increasingly more powerful compute capabilities and resources in today's devices, traditionally compute-intensive automatic speech recognition (ASR) has been moving from the cloud to devices to better protect user privacy. However, it…

Machine Learning · Computer Science 2024-05-15 Mingbin Xu , Alex Jin , Sicheng Wang , Mu Su , Tim Ng , Henry Mason , Shiyi Han , Zhihong Lei , Yaqiao Deng , Zhen Huang , Mahesh Krishnamoorthy

While generative models have set new benchmarks for Target Speaker Extraction (TSE), their inherent reliance on global context precludes deployment in real-time applications. Direct adaptation to streaming scenarios often leads to…