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This work proposes a new learning target based on reverberation time shortening (RTS) for speech dereverberation. The learning target for dereverberation is usually set as the direct-path speech or optionally with some early reflections.…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-07 Rui Zhou , Wenye Zhu , Xiaofei Li

In this paper, we propose a novel deep learning based approach for joint channel estimation and signal detection in orthogonal frequency division multiplexing (OFDM) systems by exploring the time and frequency correlation of wireless fading…

Information Theory · Computer Science 2020-08-11 Xuemei Yi , Caijun Zhong

Channel estimation is of great importance in realizing practical intelligent reflecting surface-assisted multi-user communication (IRS-MC) systems. However, different from traditional communication systems, an IRS-MC system generally…

Signal Processing · Electrical Eng. & Systems 2020-12-02 Chang Liu , Xuemeng Liu , Derrick Wing Kwan Ng , Jinhong Yuan

Spiking neural networks (SNNs) are rapidly gaining momentum as an alternative to conventional artificial neural networks in resource constrained edge systems. In this work, we continue a recent research line on recurrent SNNs where axonal…

Neural and Evolutionary Computing · Computer Science 2026-04-20 Lúcio Folly Sanches Zebendo , Eleonora Cicciarella , Michele Rossi

This work proposes a new learning target based on reverberation time shortening (RTS) for speech dereverberation. The learning target for dereverberation is usually set as the direct-path speech or optionally with some early reflections.…

Audio and Speech Processing · Electrical Eng. & Systems 2022-11-22 Rui Zhou , Wenye Zhu , Xiaofei Li

Deep learning has been widely applied for the channel state information (CSI) feedback in frequency division duplexing (FDD) massive multiple-input multiple-output (MIMO) system. For the typical supervised training of the feedback model,…

Information Theory · Computer Science 2022-07-26 Boyuan Zhang , Haozhen Li , Xin Liang , Xinyu Gu , Lin Zhang

Accent recognition with deep learning framework is a similar work to deep speaker identification, they're both expected to give the input speech an identifiable representation. Compared with the individual-level features learned by speaker…

Sound · Computer Science 2021-08-26 Wei Wang , Chao Zhang , Xiaopei Wu

Speech enhancement algorithms based on deep learning have greatly surpassed their traditional counterparts and are now being considered for the task of removing acoustic echo from hands-free communication systems. This is a challenging…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-11 Jean-Marc Valin , Srikanth Tenneti , Karim Helwani , Umut Isik , Arvindh Krishnaswamy

This paper considers the problem of data-driven prediction of partially observed systems using a recurrent neural network. While neural network based dynamic predictors perform well with full-state training data, prediction with partial…

Systems and Control · Electrical Eng. & Systems 2023-04-07 Debdipta Goswami

Multi-channel speech enhancement seeks to utilize spatial information to distinguish target speech from interfering signals. While deep learning approaches like the dual-path convolutional recurrent network (DPCRN) have made strides,…

Sound · Computer Science 2023-09-20 Jiahui Pan , Shulin He , Tianci Wu , Hui Zhang , Xueliang Zhang

Echo cancellation and noise reduction are essential for full-duplex communication, yet most existing neural networks have high computational costs and are inflexible in tuning model complexity. In this paper, we introduce time-frequency…

Audio and Speech Processing · Electrical Eng. & Systems 2023-10-11 Hangting Chen , Jianwei Yu , Yi Luo , Rongzhi Gu , Weihua Li , Zhuocheng Lu , Chao Weng

Recently, metasurfaces have experienced revolutionary growth in the sensing and superresolution imaging field, due to their enabling of subwavelength manipulation of electromagnetic waves. However, the addition of metasurfaces multiplies…

Signal Processing · Electrical Eng. & Systems 2023-05-08 Jin Zhao , Huang Zhao Zhang , Ming-Zhe Chong , Yue-Yi Zhang , Zi-Wen Zhang , Zong-Kun Zhang , Chao-Hai Du , Pu-Kun Liu

In this paper, we propose an efficient downlink channel reconstruction scheme for a frequency-division-duplex multi-antenna system by utilizing uplink channel state information combined with limited feedback. Based on the spatial…

Information Theory · Computer Science 2018-05-21 Yu Han , Tien-Hao Hsu , Chao-Kai Wen , Kai-Kit Wong , Shi Jin

In this study, we propose a dense frequency-time attentive network (DeFT-AN) for multichannel speech enhancement. DeFT-AN is a mask estimation network that predicts a complex spectral masking pattern for suppressing the noise and…

Audio and Speech Processing · Electrical Eng. & Systems 2023-03-07 Dongheon Lee , Jung-Woo Choi

Rendering dynamic reverberation in a complicated acoustic space for moving sources and listeners is challenging but crucial for enhancing user immersion in extended-reality (XR) applications. Capturing spatially varying room impulse…

Audio and Speech Processing · Electrical Eng. & Systems 2026-02-10 Orchisama Das , Gloria Dal Santo , Sebastian J. Schlecht , Vesa Valimaki , Zoran Cvetkovic

In training a deep learning system to perform audio transcription, two practical problems may arise. Firstly, most datasets are weakly labelled, having only a list of events present in each recording without any temporal information for…

Machine Learning · Computer Science 2018-07-12 Veronica Morfi , Dan Stowell

Recent work has shown that topological enhancements to recurrent neural networks (RNNs) can increase their expressiveness and representational capacity. Two popular enhancements are stacked RNNs, which increases the capacity for learning…

Machine Learning · Computer Science 2020-06-19 Javier S. Turek , Shailee Jain , Vy Vo , Mihai Capota , Alexander G. Huth , Theodore L. Willke

With the advent of deep learning, many dense prediction tasks, i.e. tasks that produce pixel-level predictions, have seen significant performance improvements. The typical approach is to learn these tasks in isolation, that is, a separate…

Computer Vision and Pattern Recognition · Computer Science 2021-01-26 Simon Vandenhende , Stamatios Georgoulis , Wouter Van Gansbeke , Marc Proesmans , Dengxin Dai , Luc Van Gool

Recent single-channel speech enhancement methods based on deep neural networks (DNNs) have achieved remarkable results, but there are still generalization problems in real scenes. Like other data-driven methods, DNN-based speech enhancement…

Audio and Speech Processing · Electrical Eng. & Systems 2021-07-12 Lu Zhang , Mingjiang Wang , Andong Li , Zehua Zhang , Xuyi Zhuang

Acoustic Echo Cancellation (AEC) plays a key role in voice interaction. Due to the explicit mathematical principle and intelligent nature to accommodate conditions, adaptive filters with different types of implementations are always used…

Sound · Computer Science 2020-05-20 Lu Ma , Hua Huang , Pei Zhao , Tengrong Su