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One of the fundamental challenges affecting the performance of communication systems is the undesired impact of noise on a signal. Noise distorts the signal and originates due to several sources including, system non-linearity and noise…

Signal Processing · Electrical Eng. & Systems 2018-01-04 Adnan Quadri

Convolutional Neural Network (CNN) recognition rates drop in the presence of noise. We demonstrate a novel method of counteracting this drop in recognition rate by adjusting the biases of the neurons in the convolutional layers according to…

Computer Vision and Pattern Recognition · Computer Science 2017-02-06 James R. Geraci , Parichay Kapoor

Lowering the noise level of short pulse lasers has been a long-standing effort for decades. Modeling the noise performance plays a crucial role in isolating the noise sources and reducing them. Modeling to date has either used analytical or…

Applied Physics · Physics 2018-10-17 Shaokang Wang , Thomas F. Carruthers , Curtis R. Menyuk

Recently, distributed active noise control systems based on diffusion adaptation have attracted significant research interest due to their balance between computational complexity and stability compared to conventional centralized and…

Audio and Speech Processing · Electrical Eng. & Systems 2022-12-29 Tianyou Li , Hongji Duan , Sipei Zhao , Jing Lu , Ian S. Burnett

Acoustic echo cancellation (AEC) algorithms have a long-term steady role in signal processing, with approaches improving the performance of applications such as automotive hands-free systems, smart home and loudspeaker devices, or web…

Audio and Speech Processing · Electrical Eng. & Systems 2021-03-17 Jan Franzen , Ernst Seidel , Tim Fingscheidt

This paper describes a novel technique for promoting sparsity in the modified filtered-x algorithms required for active noise control. The proposed algorithms are based on recent techniques incorporating approximations to the \ell_0-norm in…

Sound · Computer Science 2014-05-28 A. Gully , R. C. de Lamare

Complex-valued processing brought deep learning-based speech enhancement and signal extraction to a new level. Typically, the noise reduction process is based on a time-frequency (TF) mask which is applied to a noisy spectrogram. Complex…

Audio and Speech Processing · Electrical Eng. & Systems 2020-06-24 Hendrik Schröter , Tobias Rosenkranz , Alberto N. Escalante-B. , Andreas Maier

To improve device robustness, a highly desirable key feature of a competitive data-driven acoustic scene classification (ASC) system, a novel two-stage system based on fully convolutional neural networks (CNNs) is proposed. Our two-stage…

Recent advances in large language models have enabled LLM-based agents to achieve strong performance on a variety of benchmarks. However, their performance in real-world deployments often that observed on benchmark settings, especially in…

Artificial Intelligence · Computer Science 2026-02-19 Ruipeng Wang , Yuxin Chen , Yukai Wang , Chang Wu , Junfeng Fang , Xiaodong Cai , Qi Gu , Hui Su , An Zhang , Xiang Wang , Xunliang Cai , Tat-Seng Chua

This paper proposes CANC, a Co-teaching Active Noise Cancellation method, applied in spatial computing to address deep learning trained with extreme noisy labels. Deep learning algorithms have been successful in spatial computing for land…

Machine Learning · Computer Science 2020-11-18 Li Chen , David Yang , Purvi Goel , Ilknur Kabul

We propose a nonlinear acoustic echo cancellation system, which aims to model the echo path from the far-end signal to the near-end microphone in two parts. Inspired by the physical behavior of modern hands-free devices, we first introduce…

Sound · Computer Science 2021-06-28 Amir Ivry , Israel Cohen , Baruch Berdugo

We study online control for continuous-time linear systems with finite sampling rates, where the objective is to design an online procedure that learns under non-stochastic noise and performs comparably to a fixed optimal linear controller.…

Optimization and Control · Mathematics 2025-06-10 Jingwei Li , Jing Dong , Can Chang , Baoxiang Wang , Jingzhao Zhang

Optical fibers have been recognized as one of the most promising host material for high phase coherence optical frequency transfer over thousands of kilometers. In the pioneering work, the active phase noise cancellation (ANC) technique has…

Instrumentation and Detectors · Physics 2021-06-25 Xiang Zhang , Liang Hu , Xue Deng , Qi Zang , Jie Liu , Dongjie Wang , Tao Liu , Ruifang Dong , Shougang Zhang

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

During the image acquisition process, noise is usually added to the data mainly due to physical limitations of the acquisition sensor, and also regarding imprecisions during the data transmission and manipulation. In that sense, the…

Machine Learning · Computer Science 2021-01-20 Rafael G. Pires , Daniel F. S. Santos , Marcos C. S. Santana , Claudio F. G. Santos , Joao P. Papa

Analog network coding (ANC) is a throughput increasing technique for the two-way relay channel (TWRC) whereby two end nodes transmit simultaneously to a relay at the same time and band, followed by the relay broadcasting the received sum of…

Information Theory · Computer Science 2017-03-07 Terry Ferrett , Matthew C. Valenti

Acoustic metamaterials and active noise control are two advanced noise control treatments that can typically offer performance that exceeds that of conventional passive noise control treatments. Acoustic metamaterials utilize sub-wavelength…

Applied Physics · Physics 2026-01-29 Gregory M. Hernandez , Jordan Cheer , Gianluca Memoli

Deep convolutional neural networks (CNNs) learned on large-scale labeled samples have achieved remarkable progress in computer vision, such as image/video classification. The cheapest way to obtain a large body of labeled visual data is to…

Computer Vision and Pattern Recognition · Computer Science 2020-10-01 Zhenzhen Wang , Chunyan Xu , Yap-Peng Tan , Junsong Yuan

Traditionally, adaptive filters have been deployed to achieve AEC by estimating the acoustic echo response using algorithms such as the Normalized Least-Mean-Square (NLMS) algorithm. Several approaches have been proposed over recent years…

Sound · Computer Science 2022-01-19 Urmila Shrawankar

This paper proposes a deep cerebellar model articulation controller (DCMAC) for adaptive noise cancellation (ANC). We expand upon the conventional CMAC by stacking sin-gle-layer CMAC models into multiple layers to form a DCMAC model and…

Systems and Control · Computer Science 2017-05-03 Yu Tsao , Hao-Chun Chu , Shih-Wei Lan , Shih-Hau Fang , Junghsi Lee , Chih-Min Lin
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