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Related papers: Pushing the Limits of Non-Autoregressive Speech Re…

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Although neural end-to-end text-to-speech models can synthesize highly natural speech, there is still room for improvements to its efficiency and naturalness. This paper proposes a non-autoregressive neural text-to-speech model augmented…

Sound · Computer Science 2020-10-23 Isaac Elias , Heiga Zen , Jonathan Shen , Yu Zhang , Ye Jia , Ron Weiss , Yonghui Wu

This paper integrates a voice activity detection (VAD) function with end-to-end automatic speech recognition toward an online speech interface and transcribing very long audio recordings. We focus on connectionist temporal classification…

Audio and Speech Processing · Electrical Eng. & Systems 2020-03-16 Takenori Yoshimura , Tomoki Hayashi , Kazuya Takeda , Shinji Watanabe

End-to-end models with auto-regressive decoders have shown impressive results for automatic speech recognition (ASR). These models formulate the sequence-level probability as a product of the conditional probabilities of all individual…

Audio and Speech Processing · Electrical Eng. & Systems 2021-06-24 Qiujia Li , Yu Zhang , Bo Li , Liangliang Cao , Philip C. Woodland

Noise robustness is essential for deploying automatic speech recognition (ASR) systems in real-world environments. One way to reduce the effect of noise interference is to employ a preprocessing module that conducts speech enhancement, and…

Deep learning approaches have been widely used in Automatic Speech Recognition (ASR) and they have achieved a significant accuracy improvement. Especially, Convolutional Neural Networks (CNNs) have been revisited in ASR recently. However,…

Computation and Language · Computer Science 2017-02-28 Yisen Wang , Xuejiao Deng , Songbai Pu , Zhiheng Huang

We describe Microsoft's conversational speech recognition system, in which we combine recent developments in neural-network-based acoustic and language modeling to advance the state of the art on the Switchboard recognition task. Inspired…

Computation and Language · Computer Science 2022-02-24 W. Xiong , J. Droppo , X. Huang , F. Seide , M. Seltzer , A. Stolcke , D. Yu , G. Zweig

Despite the tremendous success of automatic speech recognition (ASR) with the introduction of deep learning, its performance is still unsatisfactory in many real-world multi-talker scenarios. Speaker separation excels in separating…

Sound · Computer Science 2025-03-25 Yufeng Yang , Hassan Taherian , Vahid Ahmadi Kalkhorani , DeLiang Wang

Humans are capable of processing speech by making use of multiple sensory modalities. For example, the environment where a conversation takes place generally provides semantic and/or acoustic context that helps us to resolve ambiguities or…

Computation and Language · Computer Science 2019-02-21 Ozan Caglayan , Ramon Sanabria , Shruti Palaskar , Loïc Barrault , Florian Metze

Reverberation negatively impacts the performance of automatic speech recognition (ASR). Prior work on quantifying the effect of reverberation has shown that clarity (C50), a parameter that can be estimated from the acoustic impulse…

Audio and Speech Processing · Electrical Eng. & Systems 2020-02-17 Hannes Gamper , Dimitra Emmanouilidou , Sebastian Braun , Ivan J. Tashev

Traditional automatic speech recognition (ASR) models output lower-cased words without punctuation marks, which reduces readability and necessitates a subsequent text processing model to convert ASR transcripts into a proper format.…

Computation and Language · Computer Science 2023-10-05 Aleksandr Meister , Matvei Novikov , Nikolay Karpov , Evelina Bakhturina , Vitaly Lavrukhin , Boris Ginsburg

Many end-to-end Automatic Speech Recognition (ASR) systems still rely on pre-processed frequency-domain features that are handcrafted to emulate the human hearing. Our work is motivated by recent advances in integrated learnable feature…

Audio and Speech Processing · Electrical Eng. & Systems 2020-10-19 Ludwig Kürzinger , Nicolas Lindae , Palle Klewitz , Gerhard Rigoll

Long Short Term Memory Connectionist Temporal Classification (LSTM-CTC) based end-to-end models are widely used in speech recognition due to its simplicity in training and efficiency in decoding. In conventional LSTM-CTC based models, a…

Computation and Language · Computer Science 2019-03-14 Yangyang Shi , Mei-Yuh Hwang , Xin Lei

In speech processing pipelines, improving the quality and intelligibility of real-world recordings is crucial. While supervised regression is the primary method for speech enhancement, audio tokenization is emerging as a promising…

Sound · Computer Science 2025-07-18 Luca Della Libera , Cem Subakan , Mirco Ravanelli

This paper presents a class of new fast non-trainable entropy-based confidence estimation methods for automatic speech recognition. We show how per-frame entropy values can be normalized and aggregated to obtain a confidence measure per…

Audio and Speech Processing · Electrical Eng. & Systems 2023-02-09 Aleksandr Laptev , Boris Ginsburg

Recently, end-to-end automatic speech recognition models based on connectionist temporal classification (CTC) have achieved impressive results, especially when fine-tuned from wav2vec2.0 models. Due to the conditional independence…

Computation and Language · Computer Science 2022-03-08 Keqi Deng , Songjun Cao , Yike Zhang , Long Ma , Gaofeng Cheng , Ji Xu , Pengyuan Zhang

Although diffusion-based, non-autoregressive text-to-speech (TTS) systems have demonstrated impressive zero-shot synthesis capabilities, their efficacy is still hindered by two key challenges: the difficulty of text-speech alignment…

Audio and Speech Processing · Electrical Eng. & Systems 2026-02-06 Chunyat Wu , Jiajun Deng , Zhengxi Liu , Zheqi Dai , Haolin He , Qiuqiang Kong

In this paper, we review various end-to-end automatic speech recognition algorithms and their optimization techniques for on-device applications. Conventional speech recognition systems comprise a large number of discrete components such as…

Machine Learning · Computer Science 2021-08-30 Chanwoo Kim , Dhananjaya Gowda , Dongsoo Lee , Jiyeon Kim , Ankur Kumar , Sungsoo Kim , Abhinav Garg , Changwoo Han

We study the problem of word-level confidence estimation in subword-based end-to-end (E2E) models for automatic speech recognition (ASR). Although prior works have proposed training auxiliary confidence models for ASR systems, they do not…

Audio and Speech Processing · Electrical Eng. & Systems 2021-03-12 David Qiu , Qiujia Li , Yanzhang He , Yu Zhang , Bo Li , Liangliang Cao , Rohit Prabhavalkar , Deepti Bhatia , Wei Li , Ke Hu , Tara N. Sainath , Ian McGraw

Optimization of modern ASR architectures is among the highest priority tasks since it saves many computational resources for model training and inference. The work proposes a new Uconv-Conformer architecture based on the standard Conformer…

Audio and Speech Processing · Electrical Eng. & Systems 2023-03-14 Andrei Andrusenko , Rauf Nasretdinov , Aleksei Romanenko

Although end-to-end automatic speech recognition (E2E ASR) has achieved great performance in tasks that have numerous paired data, it is still challenging to make E2E ASR robust against noisy and low-resource conditions. In this study, we…

Audio and Speech Processing · Electrical Eng. & Systems 2021-06-08 Emiru Tsunoo , Kentaro Shibata , Chaitanya Narisetty , Yosuke Kashiwagi , Shinji Watanabe