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Accurate estimation of the Underwater acoustic (UWA) is a key part of underwater communications, especially for coherent systems. The severe multipath effects and large delay spreads make the estimation problem large-scale. The…

Signal Processing · Electrical Eng. & Systems 2023-08-25 Tian Tian , Agastya Raj , Bruno Missi Xavier , Ying Zhang , Feiyun Wu , Kunde Yang

In this paper, we propose two contributions to neural network based denoising. First, we propose applying separate convolutional layers to each sub-band of discrete wavelet transform (DWT) as opposed to the common usage of DWT which…

Machine Learning · Computer Science 2021-02-17 Caglar Aytekin , Sakari Alenius , Dmytro Paliy , Juuso Gren

Acoustic beamformers have been widely used to enhance audio signals. Currently, the best methods are the deep neural network (DNN)-powered variants of the generalized eigenvalue and minimum-variance distortionless response beamformers and…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-12 Yuichiro Koyama , Bhiksha Raj

Digital/Analog converters based on sigma-delta modulation are simple and unexpensive circuits featuring a signal bandwidth limited by speed constraints. Multi-bit modulators allow balancing complexity and speed by reducing the clock…

Signal Processing · Electrical Eng. & Systems 2025-12-16 Marta Laguna , Juana M. Martínez-Heredia , Manuel G. Satué

All Lossy compression algorithms employ similar compression schemes -- frequency domain transform followed by quantization and lossless encoding schemes. They target tradeoffs by quantizating high frequency data to increase compression…

Information Theory · Computer Science 2021-12-15 Johnathan Chiu

Existing audio watermarking methods usually treat the host audio signals of a function of time or frequency individually, while considering them in the joint time-frequency (TF) domain has received less attention. This paper proposes an…

Multimedia · Computer Science 2020-02-11 Haijian Zhang

The performance of deep neural networks scales with dataset size and label quality, rendering the efficient mitigation of low-quality data annotations crucial for building robust and cost-effective systems. Existing strategies to address…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Francesco Di Salvo , Sebastian Doerrich , Ines Rieger , Christian Ledig

The residual vector quantization (RVQ) technique plays a central role in recent advances in neural audio codecs. These models effectively synthesize high-fidelity audio from a limited number of codes due to the hierarchical structure among…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-24 Hyeongju Kim , Junhyeok Lee , Jacob Morton , Juheon Lee , Jinhyeok Yang

Digital image watermarking has been widely used in different applications such as copyright protection of digital media, such as audio, image, and video files. Two opposing criteria of robustness and transparency are the goals of…

Multimedia · Computer Science 2020-01-13 Mahnoosh Bagheri , Majid Mohrekesh , Nader Karimi , Shadrokh Samavi

The Quantum Fisher Information (QFI) metric governs a fundamental duality: it quantifies both how precisely a parameter can be estimated (metrology) and how distinguishable two quantum states are (privacy). We exploit this duality to…

The use of a learnable codebook provides an efficient way for semantic communications to map vector-based high-dimensional semantic features onto discrete symbol representations required in digital communication systems. In this paper, the…

Information Theory · Computer Science 2025-10-16 Lingyi Wang , Rashed Shelim , Walid Saad , Naren Ramakrishnan

Quantized Neural Networks (QNNs) have emerged as a promising solution for reducing model size and computational costs, making them well-suited for deployment in edge and resource-constrained environments. While quantization is known to…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Amira Guesmi , Bassem Ouni , Muhammad Shafique

In recent years, deep learning has significantly advanced sound source localization (SSL). However, training such models requires large labeled datasets, and real recordings are costly to annotate in particular if sources move. While…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-17 Bingxiang Zhong , Thomas Dietzen

High-Frequency (HF) signals are ubiquitous in the industrial world and are of great use for monitoring of industrial assets. Most deep learning tools are designed for inputs of fixed and/or very limited size and many successful applications…

Machine Learning · Computer Science 2022-03-03 Gabriel Michau , Gaetan Frusque , Olga Fink

Most of the current deep learning-based approaches for speech enhancement only operate in the spectrogram or waveform domain. Although a cross-domain transformer combining waveform- and spectrogram-domain inputs has been proposed, its…

Sound · Computer Science 2023-10-31 Jialu Li , Junhui Li , Pu Wang , Youshan Zhang

Digital sound synthesis presents the opportunity to explore vast parameter spaces containing millions of configurations. Quality diversity (QD) evolutionary algorithms offer a promising approach to harness this potential, yet their success…

Sound · Computer Science 2025-12-03 Björn Þór Jónsson , Çağrı Erdem , Stefano Fasciani , Kyrre Glette

Modern compression algorithms are often the result of laborious domain-specific research; industry standards such as MP3, JPEG, and AMR-WB took years to develop and were largely hand-designed. We present a deep neural network model which…

Sound · Computer Science 2021-07-09 Srihari Kankanahalli

We find that the EPE evaluation metrics of RAFT-stereo converge inconsistently in the low and high frequency regions, resulting high frequency degradation (e.g., edges and thin objects) during the iterative process. The underlying reason…

Computer Vision and Pattern Recognition · Computer Science 2025-05-26 Xiaobao Wei , Jiawei Liu , Dongbo Yang , Junda Cheng , Changyong Shu , Wei Wang

Audio representation learning based on deep neural networks (DNNs) emerged as an alternative approach to hand-crafted features. For achieving high performance, DNNs often need a large amount of annotated data which can be difficult and…

Machine Learning · Computer Science 2020-07-09 Xavier Favory , Konstantinos Drossos , Tuomas Virtanen , Xavier Serra

Next-generation wireless networks, such as edge intelligence and wireless distributed learning, face two critical challenges: communication efficiency and privacy protection. In this work, our focus is on addressing these issues in a…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-12-13 Guangfeng Yan , Tan Li , Tian Lan , Kui Wu , Linqi Song
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