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For supervised speech enhancement, contextual information is important for accurate spectral mapping. However, commonly used deep neural networks (DNNs) are limited in capturing temporal contexts. To leverage long-term contexts for tracking…

Audio and Speech Processing · Electrical Eng. & Systems 2022-10-13 Xinmeng Xu , Jianjun Hao

Transformer-based acoustic modeling has achieved great suc-cess for both hybrid and sequence-to-sequence speech recogni-tion. However, it requires access to the full sequence, and thecomputational cost grows quadratically with respect to…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-19 Chunyang Wu , Yongqiang Wang , Yangyang Shi , Ching-Feng Yeh , Frank Zhang

We introduce dual-decoder Transformer, a new model architecture that jointly performs automatic speech recognition (ASR) and multilingual speech translation (ST). Our models are based on the original Transformer architecture (Vaswani et…

Computation and Language · Computer Science 2020-11-21 Hang Le , Juan Pino , Changhan Wang , Jiatao Gu , Didier Schwab , Laurent Besacier

Joint optimization of multi-channel front-end and automatic speech recognition (ASR) has attracted much interest. While promising results have been reported for various tasks, past studies on its meeting transcription application were…

Audio and Speech Processing · Electrical Eng. & Systems 2020-11-30 Xiaofei Wang , Naoyuki Kanda , Yashesh Gaur , Zhuo Chen , Zhong Meng , Takuya Yoshioka

This paper proposes a novel label-synchronous speech-to-text alignment technique for automatic speech recognition (ASR). The speech-to-text alignment is a problem of splitting long audio recordings with un-aligned transcripts into…

Audio and Speech Processing · Electrical Eng. & Systems 2021-04-22 Yusuke Kida , Tatsuya Komatsu , Masahito Togami

This paper presents our latest investigation on end-to-end automatic speech recognition (ASR) for overlapped speech. We propose to train an end-to-end system conditioned on speaker embeddings and further improved by transfer learning from…

Audio and Speech Processing · Electrical Eng. & Systems 2019-08-14 Pavel Denisov , Ngoc Thang Vu

Sequence-to-sequence attention-based models have recently shown very promising results on automatic speech recognition (ASR) tasks, which integrate an acoustic, pronunciation and language model into a single neural network. In these models,…

Audio and Speech Processing · Electrical Eng. & Systems 2018-06-05 Shiyu Zhou , Linhao Dong , Shuang Xu , Bo Xu

Transformer-based models have been achieving state-of-the-art results in several fields of Natural Language Processing. However, its direct application to speech tasks is not trivial. The nature of this sequences carries problems such as…

Computation and Language · Computer Science 2022-05-17 Gerard Sant , Gerard I. Gállego , Belen Alastruey , Marta R. Costa-Jussà

Automatic Speech Recognition (ASR) systems are often optimized to work best for speakers with canonical speech patterns. Unfortunately, these systems perform poorly when tested on atypical speech and heavily accented speech. It has…

Computation and Language · Computer Science 2021-09-16 Katrin Tomanek , Vicky Zayats , Dirk Padfield , Kara Vaillancourt , Fadi Biadsy

While significant improvements have been made in recent years in terms of end-to-end automatic speech recognition (ASR) performance, such improvements were obtained through the use of very large neural networks, unfit for embedded use on…

Computation and Language · Computer Science 2020-03-25 Alex Bie , Bharat Venkitesh , Joao Monteiro , Md. Akmal Haidar , Mehdi Rezagholizadeh

Automatic speech recognition (ASR) systems developed in recent years have shown promising results with self-attention models (e.g., Transformer and Conformer), which are replacing conventional recurrent neural networks. Meanwhile, a…

Sound · Computer Science 2022-11-01 Koichi Miyazaki , Masato Murata , Tomoki Koriyama

An important task for the design of Question Answering systems is the selection of the sentence containing (or constituting) the answer from documents relevant to the asked question. Most previous work has only used the target sentence to…

Computation and Language · Computer Science 2020-06-03 Ivano Lauriola , Alessandro Moschitti

Automatic speech recognition (ASR) is widely used in consumer electronics. ASR greatly improves the utility and accessibility of technology, but usually the output is only word sequences without punctuation. This can result in ambiguity in…

Computation and Language · Computer Science 2021-02-23 Andrew Silva , Barry-John Theobald , Nicholas Apostoloff

Sequence-to-sequence models have been widely used in end-to-end speech processing, for example, automatic speech recognition (ASR), speech translation (ST), and text-to-speech (TTS). This paper focuses on an emergent sequence-to-sequence…

Attention-based encoder-decoder model has achieved impressive results for both automatic speech recognition (ASR) and text-to-speech (TTS) tasks. This approach takes advantage of the memorization capacity of neural networks to learn the…

Computation and Language · Computer Science 2020-03-17 Chengyi Wang , Yu Wu , Yujiao Du , Jinyu Li , Shujie Liu , Liang Lu , Shuo Ren , Guoli Ye , Sheng Zhao , Ming Zhou

We live in a world where 60% of the population can speak two or more languages fluently. Members of these communities constantly switch between languages when having a conversation. As automatic speech recognition (ASR) systems are being…

Computation and Language · Computer Science 2021-02-16 Siddharth Dalmia , Yuzong Liu , Srikanth Ronanki , Katrin Kirchhoff

Recently, self-attention models such as Transformers have given competitive results compared to recurrent neural network systems in speech recognition. The key factor for the outstanding performance of self-attention models is their ability…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-29 Shucong Zhang , Erfan Loweimi , Peter Bell , Steve Renals

The conversion from text to speech relies on the accurate mapping from linguistic to acoustic symbol sequences, for which current practice employs recurrent statistical models like recurrent neural networks. Despite the good performance of…

Sound · Computer Science 2018-11-07 Santiago Pascual , Antonio Bonafonte , Joan Serrà

Punctuation and word casing prediction are necessary for automatic speech recognition (ASR). With the popularity of on-device end-to-end streaming ASR systems, the on-device punctuation and word casing prediction become a necessity while we…

Computation and Language · Computer Science 2024-07-19 Jian You , Xiangfeng Li

The recent success of transformer networks for neural machine translation and other NLP tasks has led to a surge in research work trying to apply it for speech recognition. Recent efforts studied key research questions around ways of…

Computation and Language · Computer Science 2020-03-04 Abdelrahman Mohamed , Dmytro Okhonko , Luke Zettlemoyer