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In challenging environments with significant noise and reverberation, traditional speech enhancement (SE) methods often lead to over-suppressed speech, creating artifacts during listening and harming downstream tasks performance. To…

Audio and Speech Processing · Electrical Eng. & Systems 2024-10-03 Hsin-Tien Chiang , Hao Zhang , Yong Xu , Meng Yu , Dong Yu

Speech enhancement plays an essential role in various applications, and the integration of visual information has been demonstrated to bring substantial advantages. However, the majority of current research concentrates on the examination…

Sound · Computer Science 2025-04-03 Xinyuan Qian , Jiaran Gao , Yaodan Zhang , Qiquan Zhang , Hexin Liu , Leibny Paola Garcia , Haizhou Li

Diffusion probabilistic models have demonstrated an outstanding capability to model natural images and raw audio waveforms through a paired diffusion and reverse processes. The unique property of the reverse process (namely, eliminating…

Audio and Speech Processing · Electrical Eng. & Systems 2021-11-23 Yen-Ju Lu , Yu Tsao , Shinji Watanabe

Improving speech system performance in noisy environments remains a challenging task, and speech enhancement (SE) is one of the effective techniques to solve the problem. Motivated by the promising results of generative adversarial networks…

Audio and Speech Processing · Electrical Eng. & Systems 2019-11-05 Daniel Michelsanti , Zheng-Hua Tan

Language model (LM)-based speech enhancement (SE) can generate natural-sounding speech, but under severe noise it often suffers from unreliable conditioning, leading to perceptually plausible yet linguistically incorrect outputs. To address…

Audio and Speech Processing · Electrical Eng. & Systems 2026-05-12 Zheng Wang , Xiaobin Rong , Hang Su , Tianyi Tan , Junnan Wu , Lichun Fan , Zhenbo Luo , Jian Luan , Jing Lu

Keyword spotting and in particular Wake-Up-Word (WUW) detection is a very important task for voice assistants. A very common issue of voice assistants is that they get easily activated by background noise like music, TV or background speech…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-01 David Bonet , Guillermo Cámbara , Fernando López , Pablo Gómez , Carlos Segura , Jordi Luque

Neural network models for audio tasks, such as automatic speech recognition (ASR) and acoustic scene classification (ASC), are susceptible to noise contamination for real-life applications. To improve audio quality, an enhancement module,…

Speech enhancement (SE) based on diffusion probabilistic models has exhibited impressive performance, while requiring a relatively high number of function evaluations (NFE). Recently, SE based on flow matching has been proposed, which…

Audio and Speech Processing · Electrical Eng. & Systems 2025-08-20 Seonggyu Lee , Sein Cheong , Sangwook Han , Kihyuk Kim , Jong Won Shin

Speech enhancement aims to improve the quality of speech signals in terms of quality and intelligibility, and speech editing refers to the process of editing the speech according to specific user needs. In this paper, we propose a Unified…

Sound · Computer Science 2023-10-03 Muqiao Yang , Chunlei Zhang , Yong Xu , Zhongweiyang Xu , Heming Wang , Bhiksha Raj , Dong Yu

Additive noise models (ANMs) are an important setting studied in causal inference. Most of the existing works on ANMs assume causal sufficiency, i.e., there are no unobserved confounders. This paper focuses on confounded ANMs, where a set…

Methodology · Statistics 2024-07-16 Muhammad Qasim Elahi , Mahsa Ghasemi , Murat Kocaoglu

Automatic syllable stress detection is a crucial component in Computer-Assisted Language Learning (CALL) systems for language learners. Current stress detection models are typically trained on clean speech, which may not be robust in…

Audio and Speech Processing · Electrical Eng. & Systems 2024-12-12 Rangavajjala Sankara Bharadwaj , Jhansi Mallela , Sai Harshitha Aluru , Chiranjeevi Yarra

Since the advent of Deep Learning (DL), Speech Enhancement (SE) models have performed well under a variety of noise conditions. However, such systems may still introduce sonic artefacts, sound unnatural, and restrict the ability for a user…

Personalized speech enhancement (PSE) models utilize additional cues, such as speaker embeddings like d-vectors, to remove background noise and interfering speech in real-time and thus improve the speech quality of online video conferencing…

Audio and Speech Processing · Electrical Eng. & Systems 2021-10-20 Sefik Emre Eskimez , Takuya Yoshioka , Huaming Wang , Xiaofei Wang , Zhuo Chen , Xuedong Huang

This study presents a deep learning-based speech signal-processing mobile application known as CITISEN. The CITISEN provides three functions: speech enhancement (SE), model adaptation (MA), and background noise conversion (BNC), allowing…

Audio and Speech Processing · Electrical Eng. & Systems 2022-04-26 Yu-Wen Chen , Kuo-Hsuan Hung , You-Jin Li , Alexander Chao-Fu Kang , Ya-Hsin Lai , Kai-Chun Liu , Szu-Wei Fu , Syu-Siang Wang , Yu Tsao

Speech enhancement (SE) is the foundational task of enhancing the clarity and quality of speech in the presence of non-stationary additive noise. While deterministic deep learning models have been commonly employed for SE, recent research…

Audio and Speech Processing · Electrical Eng. & Systems 2025-03-11 Sonal Kumar , Sreyan Ghosh , Utkarsh Tyagi , Anton Jeran Ratnarajah , Chandra Kiran Reddy Evuru , Ramani Duraiswami , Dinesh Manocha

Speech enhancement for voice pickup in hearables aims to improve the user's voice by suppressing noise and interfering talkers, while maintaining own-voice quality. For single-channel methods, it is particularly challenging to distinguish…

Audio and Speech Processing · Electrical Eng. & Systems 2026-02-05 Mattes Ohlenbusch , Mikolaj Kegler , Marko Stamenovic

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

Noise robustness is critical when applying automatic speech recognition (ASR) in real-world scenarios. One solution involves the used of speech enhancement (SE) models as the front end of ASR. However, neural network-based (NN-based) SE…

The deep learning-based speech enhancement (SE) methods always take the clean speech's waveform or time-frequency spectrum feature as the learning target, and train the deep neural network (DNN) by reducing the error loss between the DNN's…

Audio and Speech Processing · Electrical Eng. & Systems 2023-11-02 Yuewei Zhang , Huanbin Zou , Jie Zhu

Feature mapping using deep neural networks is an effective approach for single-channel speech enhancement. Noisy features are transformed to the enhanced ones through a mapping network and the mean square errors between the enhanced and…

Audio and Speech Processing · Electrical Eng. & Systems 2019-05-02 Zhong Meng , Jinyu Li , Yifan Gong , Biing-Hwang , Juang