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The performance of automatic speech recognition (ASR) systems has advanced substantially in recent years, particularly for languages for which a large amount of transcribed speech is available. Unfortunately, for low-resource languages,…

Computation and Language · Computer Science 2023-05-22 Martijn Bartelds , Nay San , Bradley McDonnell , Dan Jurafsky , Martijn Wieling

Automatic speech recognition systems have been largely improved in the past few decades and current systems are mainly hybrid-based and end-to-end-based. The recently proposed CTC-CRF framework inherits the data-efficiency of the hybrid…

Audio and Speech Processing · Electrical Eng. & Systems 2021-07-09 Huahuan Zheng , Wenjie Peng , Zhijian Ou , Jinsong Zhang

Due to the modality discrepancy between textual and acoustic modeling, efficiently transferring linguistic knowledge from a pretrained language model (PLM) to acoustic encoding for automatic speech recognition (ASR) still remains a…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-29 Xugang Lu , Peng Shen , Yu Tsao , Hisashi Kawai

While deep learning based end-to-end automatic speech recognition (ASR) systems have greatly simplified modeling pipelines, they suffer from the data sparsity issue. In this work, we propose a self-training method with an end-to-end system…

Audio and Speech Processing · Electrical Eng. & Systems 2020-07-31 Yang Chen , Weiran Wang , Chao Wang

We propose data and knowledge-driven approaches for multilingual training of the automated speech recognition (ASR) system for a target language by pooling speech data from multiple source languages. Exploiting the acoustic similarities…

Audio and Speech Processing · Electrical Eng. & Systems 2022-01-25 A. Madhavaraj , Ramakrishnan Angarai Ganesan

Conventional end-to-end automatic speech recognition (ASR) systems rely on paired speech-text data for domain adaptation. Recent LLM-based ASR architectures connect a speech encoder to a large language model via a projection module,…

Automatic speech recognition (ASR) has recently become an important challenge when using deep learning (DL). It requires large-scale training datasets and high computational and storage resources. Moreover, DL techniques and machine…

Sound · Computer Science 2023-08-01 Hamza Kheddar , Yassine Himeur , Somaya Al-Maadeed , Abbes Amira , Faycal Bensaali

Long short-term memory (LSTM) based acoustic modeling methods have recently been shown to give state-of-the-art performance on some speech recognition tasks. To achieve a further performance improvement, in this research, deep extensions on…

Computation and Language · Computer Science 2015-05-12 Xiangang Li , Xihong Wu

Automatic Speech Recognition(ASR) has been dominated by deep learning-based end-to-end speech recognition models. These approaches require large amounts of labeled data in the form of audio-text pairs. Moreover, these models are more…

Audio and Speech Processing · Electrical Eng. & Systems 2022-06-28 Raviraj Joshi , Anupam Singh

Multilingual models for Automatic Speech Recognition (ASR) are attractive as they have been shown to benefit from more training data, and better lend themselves to adaptation to under-resourced languages. However, initialisation from…

Audio and Speech Processing · Electrical Eng. & Systems 2018-01-24 Sibo Tong , Philip N. Garner , Hervé Bourlard

The performance of automatic speech recognition (ASR) has improved tremendously due to the application of deep neural networks (DNNs). Despite this progress, building a new ASR system remains a challenging task, requiring various resources,…

Computation and Language · Computer Science 2015-10-20 Yajie Miao , Mohammad Gowayyed , Florian Metze

Sequence-to-sequence automatic speech recognition (ASR) models require large quantities of data to attain high performance. For this reason, there has been a recent surge in interest for unsupervised and semi-supervised training in such…

Audio and Speech Processing · Electrical Eng. & Systems 2019-08-21 Murali Karthick Baskar , Shinji Watanabe , Ramon Astudillo , Takaaki Hori , Lukáš Burget , Jan Černocký

We propose a novel approach to semi-supervised automatic speech recognition (ASR). We first exploit a large amount of unlabeled audio data via representation learning, where we reconstruct a temporal slice of filterbank features from past…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-15 Shaoshi Ling , Yuzong Liu , Julian Salazar , Katrin Kirchhoff

We have recently shown that deep Long Short-Term Memory (LSTM) recurrent neural networks (RNNs) outperform feed forward deep neural networks (DNNs) as acoustic models for speech recognition. More recently, we have shown that the performance…

Computation and Language · Computer Science 2015-07-27 Haşim Sak , Andrew Senior , Kanishka Rao , Françoise Beaufays

This paper describes a new baseline system for automatic speech recognition (ASR) in the CHiME-4 challenge to promote the development of noisy ASR in speech processing communities by providing 1) state-of-the-art system with a simplified…

Sound · Computer Science 2018-03-28 Szu-Jui Chen , Aswin Shanmugam Subramanian , Hainan Xu , Shinji Watanabe

Recently, data-driven based Automatic Speech Recognition (ASR) systems have achieved state-of-the-art results. And transfer learning is often used when those existing systems are adapted to the target domain, e.g., fine-tuning, retraining.…

Sound · Computer Science 2019-04-18 Jiabin Xue , Jiqing Han , Tieran Zheng , Xiang Gao , Jiaxing Guo

End-to-end Automatic Speech Recognition (ASR) systems based on neural networks have seen large improvements in recent years. The availability of large scale hand-labeled datasets and sufficient computing resources made it possible to train…

Computer Vision and Pattern Recognition · Computer Science 2023-01-05 Maxime Burchi , Radu Timofte

Semi-supervised learning has demonstrated promising results in automatic speech recognition (ASR) by self-training using a seed ASR model with pseudo-labels generated for unlabeled data. The effectiveness of this approach largely relies on…

Machine Learning · Computer Science 2021-02-17 Niko Moritz , Takaaki Hori , Jonathan Le Roux

In this work we evaluate the utility of synthetic data for training automatic speech recognition (ASR). We use the ASR training data to train a text-to-speech (TTS) system similar to FastSpeech-2. With this TTS we reproduce the original…

Computation and Language · Computer Science 2024-10-29 Benedikt Hilmes , Nick Rossenbach , and Ralf Schlüter

The mismatch of speech length and text length poses a challenge in automatic speech recognition (ASR). In previous research, various approaches have been employed to align text with speech, including the utilization of Connectionist…

Computation and Language · Computer Science 2025-10-14 Peng Fan , Wenping Wang , Fei Deng