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Discrete speech units (DSUs) are derived from clustering the features of self-supervised speech models (S3Ms). DSUs offer significant advantages for on-device streaming speech applications due to their rich phonetic information, high…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-03 Kwanghee Choi , Masao Someki , Emma Strubell , Shinji Watanabe

Deep neural network based speech enhancement approaches aim to learn a noisy-to-clean transformation using a supervised learning paradigm. However, such a trained-well transformation is vulnerable to unseen noises that are not included in…

Sound · Computer Science 2023-02-24 Chen Chen , Yuchen Hu , Heqing Zou , Linhui Sun , Eng Siong Chng

While neural-based text to speech (TTS) models can synthesize natural and intelligible voice, they usually require high-quality speech data, which is costly to collect. In many scenarios, only noisy speech of a target speaker is available,…

Audio and Speech Processing · Electrical Eng. & Systems 2020-12-21 Chen Zhang , Yi Ren , Xu Tan , Jinglin Liu , Kejun Zhang , Tao Qin , Sheng Zhao , Tie-Yan Liu

Faced with the scarcity of clean label data in real scenarios, seismic denoising methods based on supervised learning (SL) often encounter performance limitations. Specifically, when a model trained on synthetic data is directly applied to…

Geophysics · Physics 2023-11-07 Shijun Cheng , Zhiyao Cheng , Chao Jiang , Weijian Mao , Qingchen Zhang

Contrastive-learning-based methods have dominated sentence representation learning. These methods regularize the representation space by pulling similar sentence representations closer and pushing away the dissimilar ones and have been…

Computation and Language · Computer Science 2024-01-25 Xinghao Wang , Junliang He , Pengyu Wang , Yunhua Zhou , Tianxiang Sun , Xipeng Qiu

Existing deep learning-based speech denoising approaches require clean speech signals to be available for training. This paper presents a deep learning-based approach to improve speech denoising in real-world audio environments by not…

Audio and Speech Processing · Electrical Eng. & Systems 2020-02-25 Nasim Alamdari , Arian Azarang , Nasser Kehtarnavaz

Despite the progress in self-supervised learning (SSL) for speech and music, existing models treat these domains separately, limiting their capacity for unified audio understanding. A unified model is desirable for applications that require…

Enhancing noisy speech is an important task to restore its quality and to improve its intelligibility. In traditional non-machine-learning (ML) based approaches the parameters required for noise reduction are estimated blindly from the…

Sound · Computer Science 2018-01-16 Robert Rehr , Timo Gerkmann

Speech separation (SS) has advanced significantly with neural network-based methods, showing improved performance on signal-level metrics. However, these methods often struggle to maintain speech intelligibility in the separated signals,…

Sound · Computer Science 2026-01-28 Tianhua Li , Chenda Li , Wei Wang , Xin Zhou , Xihui Chen , Jianqing Gao , Yanmin Qian

Recent studies demonstrate the effectiveness of Self Supervised Learning (SSL) speech representations for Speech Inversion (SI). However, applying SI in real-world scenarios remains challenging due to the pervasive presence of background…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-22 Saba Tabatabaee , Carol Espy-Wilson

This paper tackles the problem of the heavy dependence of clean speech data required by deep learning based audio-denoising methods by showing that it is possible to train deep speech denoising networks using only noisy speech samples.…

Sound · Computer Science 2021-09-21 Madhav Mahesh Kashyap , Anuj Tambwekar , Krishnamoorthy Manohara , S Natarajan

Speech recognition system performance degrades in noisy environments. If the acoustic models are built using features of clean utterances, the features of a noisy test utterance would be acoustically mismatched with the trained model. This…

Computation and Language · Computer Science 2015-07-16 D. S. Pavan Kumar

With the rise of Speech Large Language Models (SpeechLLMs), two dominant approaches have emerged for speech processing: discrete tokens and continuous features. Each approach has demonstrated strong capabilities in audio-related processing…

Computation and Language · Computer Science 2025-08-26 Dingdong Wang , Junan Li , Mingyu Cui , Dongchao Yang , Xueyuan Chen , Helen Meng

Recent studies in neural network-based monaural speech separation (SS) have achieved a remarkable success thanks to increasing ability of long sequence modeling. However, they would degrade significantly when put under realistic noisy…

Audio and Speech Processing · Electrical Eng. & Systems 2023-02-23 Yuchen Hu , Chen Chen , Heqing Zou , Xionghu Zhong , Eng Siong Chng

Recent research has delved into speech enhancement (SE) approaches that leverage audio embeddings from pre-trained models, diverging from time-frequency masking or signal prediction techniques. This paper introduces an efficient and…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-16 Xingwei Sun , Heinrich Dinkel , Yadong Niu , Linzhang Wang , Junbo Zhang , Jian Luan

Self-supervised learning (SSL) has reduced the reliance on expensive labeling in speech technologies by learning meaningful representations from unannotated data. Since most SSL-based downstream tasks prioritize content information in…

Sound · Computer Science 2025-05-27 Giuseppe Ruggiero , Matteo Testa , Jurgen Van de Walle , Luigi Di Caro

In real-world scenarios, speech signals are inevitably corrupted by various types of interference, making speech enhancement (SE) a critical task for robust speech processing. However, most existing SE methods only handle a limited range of…

Sound · Computer Science 2025-12-12 Fei Liu , Yang Ai , Ye-Xin Lu , Rui-Chen Zheng , Hui-Peng Du , Zhen-Hua Ling

With the development of deep learning, neural network-based speech enhancement (SE) models have shown excellent performance. Meanwhile, it was shown that the development of self-supervised pre-trained models can be applied to various…

Audio and Speech Processing · Electrical Eng. & Systems 2022-09-29 Xiao-Ying Zhao , Qiu-Shi Zhu , Jie Zhang

Noisy labels are an unavoidable consequence of labeling processes and detecting them is an important step towards preventing performance degradations in Convolutional Neural Networks. Discarding noisy labels avoids a harmful memorization,…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Diego Ortego , Eric Arazo , Paul Albert , Noel E. O'Connor , Kevin McGuinness

Speech enhancement (SE) is usually required as a front end to improve the speech quality in noisy environments, while the enhanced speech might not be optimal for automatic speech recognition (ASR) systems due to speech distortion. On the…

Audio and Speech Processing · Electrical Eng. & Systems 2022-05-27 Qiu-Shi Zhu , Jie Zhang , Zi-Qiang Zhang , Li-Rong Dai