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Time-Frequency Distributions (TFDs) support the heart sound characterisation and classification in early cardiac screening. However, despite the frequent use of TFDs in signal analysis, no study comprehensively compared their performances…

Signal Processing · Electrical Eng. & Systems 2022-08-08 Xinqi Bao , Yujia Xu , Hak-Keung Lam , Mohamed Trabelsi , Ines Chihi , Lilia Sidhom , Ernest N. Kamavuako

Congenital Heart Disease (CHD) remains a significant global health concern affecting approximately 1\% of births worldwide. Phonocardiography has emerged as a supplementary tool to diagnose CHD cost-effectively. However, the performance of…

Signal Processing · Electrical Eng. & Systems 2026-01-19 Lizy Abraham , Siobhan Coughlan , Kritika Rajain , Changhong Li , Saji Philip , Adam James

Deep learning is currently playing a crucial role toward higher levels of artificial intelligence. This paradigm allows neural networks to learn complex and abstract representations, that are progressively obtained by combining simpler…

Audio and Speech Processing · Electrical Eng. & Systems 2019-08-12 Mirco Ravanelli , Yoshua Bengio

Given the global prevalence of cardiovascular diseases, there is a pressing need for easily accessible early screening methods. Typically, this requires medical practitioners to investigate heart auscultations for irregular sounds, followed…

Sound · Computer Science 2024-12-05 Linh Vu , Thu Tran

The heart sound signals (Phonocardiogram - PCG) enable the earliest monitoring to detect a potential cardiovascular pathology and have recently become a crucial tool as a diagnostic test in outpatient monitoring to assess heart hemodynamic…

Signal Processing · Electrical Eng. & Systems 2019-02-21 Serkan Kiranyaz , Morteza Zabihi , Ali Bahrami Rad , Anas Tahir , Turker Ince , Ridha Hamila , Moncef Gabbouj

Automated heart sounds classification is a much-required diagnostic tool in the view of increasing incidences of heart related diseases worldwide. In this study, we conduct a comprehensive study of heart sounds classification by using…

Computer Vision and Pattern Recognition · Computer Science 2020-06-05 Balagopal Unnikrishnan , Pranshu Ranjan Singh , Xulei Yang , Matthew Chin Heng Chua

Objective: This paper presents a novel heart sound segmentation algorithm based on Temporal-Framing Adaptive Network (TFAN), including state transition loss and dynamic inference for decoding the most likely state sequence. Methods: In…

Signal Processing · Electrical Eng. & Systems 2020-07-21 Xingyao Wang , Chengyu Liu , Yuwen Li , Xianghong Cheng , Jianqing Li , Gari D. Clifford

Speaker verification aims to verify whether an input speech corresponds to the claimed speaker, and conventionally, this kind of system is deployed based on single-stream scenario, wherein the feature extractor operates in full frequency…

Sound · Computer Science 2025-09-03 Wei Yao , Shen Chen , Jiamin Cui , Yaolin Lou

The automated classification of phonocardiogram (PCG) recordings represents a substantial advancement in cardiovascular diagnostics. This paper presents a systematic comparison of four distinct models for heart murmur detection: two…

Arrhythmia is a cardiovascular disease that manifests irregular heartbeats. In arrhythmia detection, the electrocardiogram (ECG) signal is an important diagnostic technique. However, manually evaluating ECG signals is a complicated and…

Signal Processing · Electrical Eng. & Systems 2021-05-04 Jindi Lv , Qing Ye , Yanan Sun , Juan Zhao , Jiancheng Lv

Heart auscultations are a low-cost and effective way of detecting valvular heart diseases early, which can save lives. Nevertheless, it has been difficult to scale this screening method since the effectiveness of auscultations is dependent…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-15 Ansh Mishra , Jia Qi Yip , Eng Siong Chng

Automatic learning algorithms for improving the image quality of diagnostic B-mode ultrasound (US) images have been gaining popularity in the recent past. In this work, a novel convolutional neural network (CNN) is trained using time of…

Signal Processing · Electrical Eng. & Systems 2021-08-18 Roshan P Mathews , Mahesh Raveendranatha Panicker

Objective: Heartbeat detection remains central to cardiac disease diagnosis and management, and is traditionally performed based on electrocardiogram (ECG). To improve robustness and accuracy of detection, especially, in certain…

Signal Processing · Electrical Eng. & Systems 2018-07-10 B S Chandra , C S Sastry , S Jana

Heart disease is the most common reason for human mortality that causes almost one-third of deaths throughout the world. Detecting the disease early increases the chances of survival of the patient and there are several ways a sign of heart…

Audio and Speech Processing · Electrical Eng. & Systems 2021-10-05 Uddipan Mukherjee , Sidharth Pancholi

Artificial intelligence and deep learning are increasingly applied in the clinical domain, particularly for early and accurate disease detection using medical imaging and sound. Due to limited trained personnel, there is a growing demand…

Image and Video Processing · Electrical Eng. & Systems 2025-09-30 Shahran Rahman Alve , Muhammad Zawad Mahmud , Samiha Islam , Mohammad Monirujjaman Khan

Accurate classification of respiratory sounds requires deep learning models that effectively capture fine-grained acoustic features and long-range temporal dependencies. Convolutional Neural Networks (CNNs) are well-suited for extracting…

Sound · Computer Science 2025-07-29 Nouhaila Fraihi , Ouassim Karrakchou , Mounir Ghogho

Objective: Voice disorders significantly compromise individuals' ability to speak in their daily lives. Without early diagnosis and treatment, these disorders may deteriorate drastically. Thus, automatic classification systems at home are…

Audio and Speech Processing · Electrical Eng. & Systems 2023-04-27 Heng-Cheng Kuo , Yu-Peng Hsieh , Huan-Hsin Tseng , Chi-Te Wang , Shih-Hau Fang , Yu Tsao

Sound events often occur in unstructured environments where they exhibit wide variations in their frequency content and temporal structure. Convolutional neural networks (CNN) are able to extract higher level features that are invariant to…

Machine Learning · Computer Science 2017-05-31 Emre Çakır , Giambattista Parascandolo , Toni Heittola , Heikki Huttunen , Tuomas Virtanen

Majority of the recent approaches for text-independent speaker recognition apply attention or similar techniques for aggregation of frame-level feature descriptors generated by a deep neural network (DNN) front-end. In this paper, we…

Sound · Computer Science 2019-10-22 Sarthak Yadav , Atul Rai

We propose two deep neural network architectures for classification of arbitrary-length electrocardiogram (ECG) recordings and evaluate them on the atrial fibrillation (AF) classification data set provided by the PhysioNet/CinC Challenge…

Machine Learning · Computer Science 2018-04-10 Martin Zihlmann , Dmytro Perekrestenko , Michael Tschannen