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Heart rate variability (HRV) is a practical and noninvasive measure of autonomic nervous system activity, which plays an essential role in cardiovascular health. However, using HRV to assess physiology status is challenging. Even in…

Signal Processing · Electrical Eng. & Systems 2022-03-24 Jiacheng Zhu , Gregory Darnell , Agni Kumar , Ding Zhao , Bo Li , Xuanlong Nguyen , Shirley You Ren

Objective: Heart rate variability (HRV) has been proven to be an important indicator of physiological status for numerous applications. Despite the progress and active developments made in HRV metric research over the last few decades, the…

Computational Engineering, Finance, and Science · Computer Science 2021-11-19 Chenglin Niu , Dagang Guo , Marcus Eng Hock Ong , Zhi Xiong Koh , Andrew Fu Wah Ho , Zhiping Lin , Chengyu Liu , Gari D. Clifford , Nan Liu

Recently, growing health awareness, novel methods allow individuals to monitor sleep at home. Utilizing sleep sounds offers advantages over conventional methods like smartwatches, being non-intrusive, and capable of detecting various…

Machine Learning · Computer Science 2024-10-18 Shintaro Tamai , Masayuki Numao , Ken-ichi Fukui

Audio-Visual Speech Recognition (AVSR) seeks to model, and thereby exploit, the dynamic relationship between a human voice and the corresponding mouth movements. A recently proposed multimodal fusion strategy, AV Align, based on…

Audio and Speech Processing · Electrical Eng. & Systems 2020-04-20 George Sterpu , Christian Saam , Naomi Harte

In this work, we propose an ensemble of classifiers to distinguish between various degrees of abnormalities of the heart using Phonocardiogram (PCG) signals acquired using digital stethoscopes in a clinical setting, for the INTERSPEECH 2018…

Computer Vision and Pattern Recognition · Computer Science 2019-04-30 Ahmed Imtiaz Humayun , Md. Tauhiduzzaman Khan , Shabnam Ghaffarzadegan , Zhe Feng , Taufiq Hasan

Using sonification on scientific data analysis provides additional dimensions to visualization, potentially increasing researchers' analytical capabilities and fostering inclusion and accessibility. This research explores the potential of…

Instrumentation and Methods for Astrophysics · Physics 2024-12-03 Adrián García Riber , Rubén García-Benito , Francisco Serradilla

Deployment of machine learning algorithms into real-world practice is still a difficult task. One of the challenges lies in the unpredictable variability of input data, which may differ significantly among individual users, institutions,…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Roman Stoklasa

Heart rate variability (HRV) is a well-known phenomenon whose characteristics are of great clinical relevance in pathophysiologic investigations. In particular, respiration is a powerful modulator of HRV contributing to the oscillations at…

Tissues and Organs · Quantitative Biology 2015-06-26 R. Balocchi , D. Menicucci , E. Santarcangelo , L. Sebastiani , A. Gemignani , B. Ghelarducci , M. Varanini

Heart rate variability (HRV) is a vital measure of the autonomic nervous system functionality and a key indicator of cardiovascular condition. This paper proposes a novel method, called pattern tree which is an extension of Willem's context…

Machine Learning · Computer Science 2017-10-23 Elyas Sabeti , Anders Høst-Madsen

Auscultation, particularly heart sound, is a non-invasive technique that provides essential vital sign information. Recently, self-supervised acoustic representation foundation models (FMs) have been proposed to offer insights into…

Disorders of voice production have severe effects on the quality of life of the affected individuals. A simulation approach is used to investigate the cause-effect chain in voice production showing typical characteristics of voice such as…

Sound · Computer Science 2022-07-20 Florian Kraxberger , Andreas Wurzinger , Stefan Schoder

Pitch-based sonification of quantitative data increases the accessibility of data visualizations that are otherwise inaccessible for blind and low-vision (BLV) individuals. We argue that, although pitch representations can reveal the…

Human-Computer Interaction · Computer Science 2026-04-13 Can Liu , Wenjie Jiang , Shaolun Ruan , Kotaro Hara , Yong Wang

A heart murmur is an atypical sound produced by the flow of blood through the heart. It can be a sign of a serious heart condition, so detecting heart murmurs is critical for identifying and managing cardiovascular diseases. However,…

Signal Processing · Electrical Eng. & Systems 2023-06-09 Dixon Vimalajeewa , Chihoon Lee , Brani Vidakovic

In this work, we propose a supervised, convex representation based audio hashing framework for bird species classification. The proposed framework utilizes archetypal analysis, a matrix factorization technique, to obtain convex-sparse…

Audio and Speech Processing · Electrical Eng. & Systems 2019-02-08 Anshul Thakur , Pulkit Sharma , Vinayak Abrol , Padmanabhan Rajan

Stress is prevalent in many aspects of everyday life including work, healthcare, and social interactions. Many works have studied handcrafted features from various bio-signals that are indicators of stress. Recently, deep learning models…

Machine Learning · Computer Science 2024-02-01 Pooja Prajod , Elisabeth André

Gyrosonics refers to novel audio binaural stimulus that produces rotational perceptions of sound movement in head at a particular predetermined frequency. Therapeutic effect observed with this is considered to be associated with…

Medical Physics · Physics 2009-06-30 S. K. Ghatak , S. S. Ray , R. Choudhuri , S. Banerjee

Synchronization cluster analysis is an approach to the detection of underlying structures in data sets of multivariate time series, starting from a matrix R of bivariate synchronization indices. A previous method utilized the eigenvectors…

Data Analysis, Statistics and Probability · Physics 2007-12-20 Carsten Allefeld , Stephan Bialonski

Motivation: CMR is the golden standard for cardiac diagnosis, and medical data annotation is time-consuming. Thus, screening techniques from unlabeled data can help streamline the cardiac diagnosis process. Goal: This work aims to enable…

Tissues and Organs · Quantitative Biology 2025-11-11 Yundi Zhang , Daniel Rueckert , Jiazhen Pan

Sonification, or conveying data using non-verbal audio, is a relatively niche but growing approach for presenting data across multiple specialist domains including astronomy, climate science, and beyond. The STRAUSS Python package aims to…

Instrumentation and Methods for Astrophysics · Physics 2025-05-13 James W. Trayford , Samantha Youles , Chris Harrison , Rose Shepherd , Nicolas Bonne

Heart failure (HF) is a leading cause of morbidity, mortality, and health care costs. Prolonged conduction through the myocardium can occur with HF, and a device-driven approach, termed cardiac resynchronization therapy (CRT), can improve…

Machine Learning · Computer Science 2021-09-14 Brendan E. Odigwe , Francis G. Spinale , Homayoun Valafar