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Accurate estimation of Room Impulse Response (RIR), which captures an environment's acoustic properties, is important for speech processing and AR/VR applications. We propose AV-RIR, a novel multi-modal multi-task learning approach to…

Sound · Computer Science 2024-04-25 Anton Ratnarajah , Sreyan Ghosh , Sonal Kumar , Purva Chiniya , Dinesh Manocha

The large amount of data collected by LiDAR sensors brings the issue of LiDAR point cloud compression (PCC). Previous works on LiDAR PCC have used range image representations and followed the predictive coding paradigm to create a basic…

Multimedia · Computer Science 2023-03-10 Chia-Sheng Liu , Jia-Fong Yeh , Hao Hsu , Hung-Ting Su , Ming-Sui Lee , Winston H. Hsu

Equation Discovery techniques have shown considerable success in regression tasks, where they are used to discover concise and interpretable models (\textit{Symbolic Regression}). In this paper, we propose a new ED-based binary…

Machine Learning · Computer Science 2025-10-29 Guus Toussaint , Arno Knobbe

Reconfigurable electromagnetic structures (REMSs), such as reconfigurable reflectarrays (RRAs) or reconfigurable intelligent surfaces (RISs), hold significant potential to improve the spectral efficiency of wireless communication systems…

Signal Processing · Electrical Eng. & Systems 2025-12-16 Alexander Stutz-Tirri , Georg Schwan , Christoph Studer

Many works have investigated radio map and path loss prediction in wireless networks using deep learning, in particular using convolutional neural networks. However, most assume perfect environment information, which is unrealistic in…

Signal Processing · Electrical Eng. & Systems 2026-02-13 Fabian Jaensch , Çağkan Yapar , Giuseppe Caire , Begüm Demir

Speech audio quality is subject to degradation caused by an acoustic environment and isotropic ambient and point noises. The environment can lead to decreased speech intelligibility and loss of focus and attention by the listener. Basic…

Audio and Speech Processing · Electrical Eng. & Systems 2022-04-05 Paula Sánchez López , Paul Callens , Milos Cernak

Psychoacoustic experiments have shown that directional properties of the direct sound, salient reflections, and the late reverberation of an acoustic room response can have a distinct influence on the auditory perception of a given room.…

Audio and Speech Processing · Electrical Eng. & Systems 2024-06-28 Thomas Deppisch , Sebastià V. Amengual Garí , Paul Calamia , Jens Ahrens

Single-channel speech dereverberation aims at extracting a dry speech signal from a recording affected by the acoustic reflections in a room. However, most current deep learning-based approaches for speech dereverberation are not…

Sound · Computer Science 2024-07-12 Louis Bahrman , Mathieu Fontaine , Jonathan Le Roux , Gaël Richard

Efficient energy management is essential for reliable and sustainable microgrid operation amid increasing renewable integration. In this paper, an imitation learning-based framework to approximate mixed-integer Economic Model Predictive…

Systems and Control · Electrical Eng. & Systems 2026-04-29 Changrui Liu , Shengling Shi , Anil Alan , Ganesh Kumar Venayagamoorthy , Bart De Schutter

Dynamic Range Compression (DRC) is a widely used audio effect that adjusts signal dynamics for applications in music production, broadcasting, and speech processing. Inverting DRC is of broad importance for restoring the original dynamics,…

Sound · Computer Science 2025-09-11 Haoran Sun , Dominique Fourer , Hichem Maaref

Several established parameters and metrics have been used to characterize the acoustics of a room. The most important are the Direct-To-Reverberant Ratio (DRR), the Reverberation Time (T60) and the reflection coefficient. The acoustic…

Sound · Computer Science 2015-10-05 James Eaton , Nikolay D. Gaubitch , Alastair H. Moore , Patrick A. Naylor

A fundamental difficulty in all-in-one blind image restoration is that degradation is usually treated as an implicit factor hidden in degraded-to-clean mapping, rather than as an explicit object that can be measured and manipulated. This…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Xinghua Huang , Zhixiong Yang , Chen Wu , Shengxi Li , Shuaifeng Zhi , Yue Zhang , Qibin Hou , Xin Deng , Jingyuan Xia

Knowing the room geometry may be very beneficial for many audio applications, including sound reproduction, acoustic scene analysis, and sound source localization. Room geometry inference (RGI) deals with the problem of reflector…

Audio and Speech Processing · Electrical Eng. & Systems 2023-08-29 Cagdas Tuna , Altan Akat , H. Nazim Bicer , Andreas Walther , Emanuël A. P. Habets

Perceptual metrics are traditionally used to evaluate the quality of natural signals, such as images and audio. They are designed to mimic the perceptual behaviour of human observers and usually reflect structures found in natural signals.…

Sound · Computer Science 2023-12-07 Tashi Namgyal , Alexander Hepburn , Raul Santos-Rodriguez , Valero Laparra , Jesus Malo

Recursion is a fundamental concept in the design of filters and audio systems. In particular, artificial reverberation systems that use delay networks depend on recursive paths to control both echo density and the decay rate of modal…

Audio and Speech Processing · Electrical Eng. & Systems 2026-04-28 Gloria Dal Santo , Karolina Prawda , Sebastian J. Schlecht , Vesa Välimäki

An immersive acoustic experience enabled by spatial audio is just as crucial as the visual aspect in creating realistic virtual environments. However, existing methods for room impulse response estimation rely either on data-demanding…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Derong Jin , Ruohan Gao

Classical energy detection (ED) methods for cognitive radio (CR) have addressed noise uncertainty as deviations in noise power and signal uncertainty as variability in signal characteristics, which use probabilistic methods and assume fixed…

Information Theory · Computer Science 2026-05-21 Jialiang Fu , Wen-Xuan Lang

Direct-to-Reverberant Ratio (DRR) is an important measure for characterizing the properties of a room. The recently proposed DRR Estimation using a Null-Steered Beamformer (DENBE) algorithm was originally tested on simulated data where…

Sound · Computer Science 2015-10-27 James Eaton , Patrick A. Naylor

Room Impulse Responses (RIRs) characterize acoustic environments and are crucial in multiple audio signal processing tasks. High-quality RIR estimates drive applications such as virtual microphones, sound source localization, augmented…

Sound · Computer Science 2025-04-30 Sagi Della Torre , Mirco Pezzoli , Fabio Antonacci , Sharon Gannot

Additive parameter updates, as used in gradient descent and its adaptive extensions, underpin most modern machine-learning optimization. Yet, such additive schemes often demand numerous iterations and intricate learning-rate schedules to…

Machine Learning · Computer Science 2026-03-25 Han Kim , Hyungjoon Soh , Vipul Periwal , Junghyo Jo