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Online multichannel speech enhancement has been intensively studied recently. Though Mel-scale frequency is more matched with human auditory perception and computationally efficient than linear frequency, few works are implemented in a…

Audio and Speech Processing · Electrical Eng. & Systems 2025-05-27 Yujie Yang , Bing Yang , Xiaofei Li

Clustering analysis of sequence data continues to address many applications in engineering design, aided with the rapid growth of machine learning in applied science. This paper presents an unsupervised machine learning algorithm to extract…

Geophysics · Physics 2024-02-15 R. Bailey Bond , Pu Ren , Jerome F. Hajjar , Hao Sun

In a recent study (Jozinovi\'c et al, 2020) we showed that convolutional neural networks (CNNs) applied to network seismic traces can be used for rapid prediction of earthquake peak ground motion intensity measures (IMs) at distant stations…

Geophysics · Physics 2021-12-15 Dario Jozinović , Anthony Lomax , Ivan Štajduhar , Alberto Michelini

Speech emotion recognition (SER) has been a challenging problem in spoken language processing research, because it is unclear how human emotions are connected to various components of sounds such as pitch, loudness, and energy. This paper…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-03 Tai Vu

This paper proposes to perform unsupervised detection of bioacoustic events by pooling the magnitudes of spectrogram frames after per-channel energy normalization (PCEN). Although PCEN was originally developed for speech recognition, it…

Enhancing the frequency bandwidth of the seismic data is always the pursuance at the geophysical community. High resolution of seismic data provides the key resource to extract detailed stratigraphic knowledge. Here, a novel approach, based…

Image and Video Processing · Electrical Eng. & Systems 2019-09-16 Yanyan Zhang , Ping Lu , Hua Yu , Stan Morris

Background: An early diagnosis together with an accurate disease progression monitoring of multiple sclerosis is an important component of successful disease management. Prior studies have established that multiple sclerosis is correlated…

Audio and Speech Processing · Electrical Eng. & Systems 2021-09-28 Emil Svoboda , Tomáš Bořil , Jan Rusz , Tereza Tykalová , Dana Horáková , Charles R. G. Guttman , Krastan B. Blagoev , Hiroto Hatabu , Vlad I. Valtchinov

Within the context of creating new Socially Assistive Robots, emotion recognition has become a key development factor, as it allows the robot to adapt to the user's emotional state in the wild. In this work, we focused on the analysis of…

The use of photoplethysmogram signal (PPG) for heart and sleep monitoring is commonly found nowadays in smartphones and wrist wearables. Besides common usages, it has been proposed and reported that person information can be extracted from…

Audio and Speech Processing · Electrical Eng. & Systems 2019-11-13 Guillermo Cámbara , Jordi Luque , Mireia Farrús

This work focuses on reliable detection of bird sound emissions as recorded in the open field. Acoustic detection of avian sounds can be used for the automatized monitoring of multiple bird taxa and querying in long-term recordings for…

Sound · Computer Science 2016-09-28 Ilyas Potamitis

Multiple studies have now demonstrated that machine learning (ML) can give improved skill for predicting or simulating fairly typical weather events, for tasks such as short-term and seasonal weather forecasting, downscaling simulations to…

Atmospheric and Oceanic Physics · Physics 2023-08-30 Peter AG Watson

Birds are vital parts of ecosystems across the world and are an excellent measure of the quality of life on earth. Many bird species are endangered while others are already extinct. Ecological efforts in understanding and monitoring bird…

Multimedia · Computer Science 2022-11-16 Chandra Kanth Nagesh , Abhishek Purushothama

Marine mammal vocalization analysis depends on interpreting bioacoustic spectrograms. Vision Language Models (VLMs) are not trained on these domain-specific visualizations. We investigate whether VLMs can extract meaningful patterns from…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Ragib Amin Nihal , Benjamin Yen , Takeshi Ashizawa , Kazuhiro Nakadai

Seismic events, among many other natural hazards, reduce due functionality and exacerbate vulnerability of in-service buildings. Accurate modeling and prediction of building's response subjected to earthquakes makes possible to evaluate…

Signal Processing · Electrical Eng. & Systems 2019-09-19 Ruiyang Zhang , Yang Liu , Hao Sun

In volcano monitoring, effective recognition of seismic events is essential for understanding volcanic activity and raising timely warning alerts. Traditional methods rely on manual analysis, which can be subjective and labor-intensive.…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Camilo Espinosa-Curilem , Millaray Curilem , Daniel Basualto

Efficient and accurate bird sound classification is of important for ecology, habitat protection and scientific research, as it plays a central role in monitoring the distribution and abundance of species. However, prevailing methods…

Sound · Computer Science 2023-12-27 Yiyuan Yang , Kaichen Zhou , Niki Trigoni , Andrew Markham

Recent natural disasters have highlighted the urgent need for efficient data-driven approaches to disaster management. Machine learning (ML) and deep learning (DL) techniques have shown considerable promise in enhancing the key phases of…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Alain P. Ndigande , Josiah Wiggins , Sedat Ozer

Orcinus orca (killer whales) exhibit complex calls. They last about a second. In a call, an orca typically uses multiple frequencies simultaneously, varies the frequencies, and varies their volumes. Behavior data is hard to obtain because…

Sound · Computer Science 2023-02-23 Sophia Sandholm

Over the past decades, the Groningen Gas Field (GGF) has been increasingly faced by induced earthquakes resulting from gas production. The seismic monitoring network at Groningen has been recently densified to improve the seismic network…

Geophysics · Physics 2020-01-22 Bob Paap , Stefan Carpentier , Peter-Paul van Maanen , Sjef Meekes

Acoustic features play an important role in improving the quality of the synthesised speech. Currently, the Mel spectrogram is a widely employed acoustic feature in most acoustic models. However, due to the fine-grained loss caused by its…

Sound · Computer Science 2024-07-11 Guoqiang Hu , Huaning Tan , Ruilai Li