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275 Results Found

  • Article
  • Open Access
16 Citations
5,120 Views
16 Pages

31 December 2022

The performance of speaker recognition systems is very well on the datasets without noise and mismatch. However, the performance gets degraded with the environmental noises, channel variation, physical and behavioral changes in speaker. The types of...

(This article belongs to the Special Issue AI, Machine Learning and Deep Learning in Signal Processing)
  • Proceeding Paper
  • Open Access
1 Citations
1,764 Views
4 Pages

Leveraging MFCC and Mel-Spectrogram Representations for Deep Learning-Based Speech Recognition

  • Jose Antonio Lopez-Olvera,
  • Hector Manuel Perez-Meana,
  • Elizabeth Garcia-Rios and
  • Enrique Escamilla-Hernandez

5 February 2026

This work propose an audio feature pipeline to support machine learning tasks through the extraction of the Mel Frequency Cepstral Coefficients and Mel-spectrogram which is then used as the input of an Convolutional Neural Network which is trained to...

(This article belongs to the Proceedings of First Summer School on Artificial Intelligence in Cybersecurity)
  • Article
  • Open Access
4 Citations
3,193 Views
15 Pages

13 November 2023

Predicting the remaining time before the next earthquake based on seismic signals generated in a laboratory setting is a challenging research task that is of significant importance for earthquake hazard assessment. In this study, we employed a mel sp...

(This article belongs to the Special Issue Machine Learning Approaches for Geophysical Data Analysis)
  • Article
  • Open Access
2 Citations
2,637 Views
10 Pages

24 May 2022

An elbow wall thinning diagnosis method by highlighting the stationary characteristics of the operating loop is proposed. The accelerations of curved pipe surfaces were measured in a closed test loop operating at a constant pump rpm, combined with cu...

(This article belongs to the Section Physical Sensors)
  • Brief Report
  • Open Access
21 Citations
6,273 Views
11 Pages

Multi-Input Speech Emotion Recognition Model Using Mel Spectrogram and GeMAPS

  • Itsuki Toyoshima,
  • Yoshifumi Okada,
  • Momoko Ishimaru,
  • Ryunosuke Uchiyama and
  • Mayu Tada

3 February 2023

The existing research on emotion recognition commonly uses mel spectrogram (MelSpec) and Geneva minimalistic acoustic parameter set (GeMAPS) as acoustic parameters to learn the audio features. MelSpec can represent the time-series variations of each...

(This article belongs to the Special Issue Emotion Recognition Based on Sensors (Volume II))
  • Article
  • Open Access
1 Citations
1,617 Views
18 Pages

1 August 2025

Environmental noise is inevitable during seismic data acquisition, with major sources including heavy machinery, rivers, wind, and other environmental factors. During field data acquisition, it is important to assess the impact of environmental noise...

  • Article
  • Open Access
6 Citations
1,673 Views
26 Pages

21 July 2025

This study presents a novel approach to the end-of-line (EoL) quality inspection of brushless DC (BLDC) motors by implementing a deep learning model that combines MEL diagrams, convolutional neural networks (CNNs) and bidirectional gated recurrent un...

(This article belongs to the Special Issue Advances in Noise and Vibrations for Machines)
  • Article
  • Open Access
9 Citations
1,410 Views
18 Pages

1 August 2025

In response to the problem of complex and variable loads on wind turbine gearbox bearing in working conditions, as well as the limited amount of sound data making fault identification difficult, this study focuses on sound signals and proposes an int...

  • Article
  • Open Access
5 Citations
1,429 Views
20 Pages

17 September 2025

Background/Objectives: Automatic pain detection from speech signals holds strong promise for non-invasive and real-time assessment in clinical and caregiving settings, particularly for populations with limited capacity for self-report. Methods: In th...

(This article belongs to the Section Machine Learning and Artificial Intelligence in Diagnostics)
  • Article
  • Open Access
9 Citations
8,176 Views
15 Pages

27 October 2023

Audio signals play a crucial role in our perception of our surroundings. People rely on sound to assess motion, distance, direction, and environmental conditions, aiding in danger avoidance and decision making. However, in real-world environments, du...

(This article belongs to the Special Issue Emerging Trends in Advanced Video and Sequence Technology)
  • Article
  • Open Access
1 Citations
1,080 Views
15 Pages

Multi-Feature Fusion for Automatic Piano Transcription Based on Mel Cyclic and STFT Spectrograms

  • Jinliang Dai,
  • Qiuyue Zheng,
  • Yang Wang,
  • Qihuan Shan and ,
  • Jie Wan and
  • Weiwei Zhang
  • + 1 author+ 0 author

29 November 2025

Automatic piano transcription (APT) is a challenging problem in music information retrieval. In recent years, most APT approaches have been based on neural networks and have demonstrated higher performance. However, most previous works utilize a shor...

(This article belongs to the Special Issue Recent Advances in Audio, Speech and Music Processing and Analysis, 2nd Edition)
  • Article
  • Open Access
8 Citations
4,475 Views
22 Pages

5 October 2025

This paper presents an automatic system for the classification of musical instruments from audio recordings. The project leverages deep learning (DL) techniques to achieve its objective, exploring three different classification approaches based on di...

(This article belongs to the Special Issue Artificial Intelligence for Acoustics and Audio Signal Processing)
  • Article
  • Open Access
770 Views
21 Pages

4 July 2026

Respiratory disease classification using lung sound recordings remains challenging due to signal interference, heterogeneous acquisition conditions, and substantial overlap among clinically related acoustic patterns. This study presents a framework f...

(This article belongs to the Special Issue Intelligent Sensing and Computing for Biomedical Signal Processing and Analysis)
  • Article
  • Open Access
27 Citations
7,038 Views
17 Pages

MelTrans: Mel-Spectrogram Relationship-Learning for Speech Emotion Recognition via Transformers

  • Hui Li,
  • Jiawen Li,
  • Hai Liu,
  • Tingting Liu and ,
  • Qiang Chen and
  • Xinge You
  • + 1 author+ 0 author

25 August 2024

Speech emotion recognition (SER) is not only a ubiquitous aspect of everyday communication, but also a central focus in the field of human–computer interaction. However, SER faces several challenges, including difficulties in detecting subtle e...

(This article belongs to the Special Issue Human-Robot Interaction for Intelligent Education and Engineering Applications)
  • Article
  • Open Access
949 Views
21 Pages

Intelligent Localization of Cross-Sectional Structural Damage in Molten Salt Receiver Tubes Using Mel Spectrograms and TSA-Optimized 2D-CNN

  • Peiran Leng,
  • Man Liang,
  • Weihong Sun,
  • Tiefeng Shao and ,
  • Luowei Cao and
  • Sunting Yan
  • + 1 author+ 0 author

29 April 2026

In this paper, an intelligent localization framework based on deep learning is proposed to address the limitations of insufficient accuracy and robustness in defect identification and localization during the ultrasonic guided-wave non-destructive tes...

(This article belongs to the Special Issue Ultrasonic Sensors and Ultrasonic Signal Processing)
  • Article
  • Open Access
18 Citations
4,735 Views
19 Pages

22 September 2023

Stuttering, a prevalent neurodevelopmental disorder, profoundly affects fluent speech, causing involuntary interruptions and recurrent sound patterns. This study addresses the critical need for the accurate classification of stuttering types. The res...

(This article belongs to the Section Sensing and Imaging)
  • Article
  • Open Access
25 Citations
5,729 Views
20 Pages

Speech Emotion Recognition Using a Dual-Channel Complementary Spectrogram and the CNN-SSAE Neutral Network

  • Juan Li,
  • Xueying Zhang,
  • Lixia Huang,
  • Fenglian Li and ,
  • Shufei Duan and
  • Ying Sun
  • + 1 author+ 0 author

22 September 2022

In the background of artificial intelligence, the realization of smooth communication between people and machines has become the goal pursued by people. Mel spectrograms is a common method used in speech emotion recognition, focusing on the low-frequ...

(This article belongs to the Special Issue Advances in Speech and Language Processing)
  • Article
  • Open Access
11 Citations
3,771 Views
13 Pages

Detection of Abnormal Symptoms Using Acoustic-Spectrogram-Based Deep Learning

  • Seong-Yoon Kim,
  • Hyun-Min Lee,
  • Chae-Young Lim and
  • Hyun-Woo Kim

23 April 2025

Acoustic data inherently contain a variety of information, including indicators of abnormal symptoms. In this study, we propose a method for detecting abnormal symptoms by converting acoustic data into spectrogram representations and applying a deep...

(This article belongs to the Special Issue AI in Audio Analysis: Spectrogram-Based Recognition)
  • Article
  • Open Access
1 Citations
1,952 Views
41 Pages

21 January 2026

Passive acoustic monitoring (PAM) using hydrophones enables collecting acoustic data to be collected in large and diverse quantities, necessitating the need for a reliable automated classification system. This paper presents a data-processing pipelin...

(This article belongs to the Section Sensor Networks)
  • Article
  • Open Access
1,233 Views
14 Pages

AirSpeech: Lightweight Speech Synthesis Framework for Home Intelligent Space Service Robots

  • Xiugong Qin,
  • Fenghu Pan,
  • Jing Gao,
  • Shilong Huang and ,
  • Yichen Sun and
  • Xiao Zhong
  • + 1 author+ 0 author

Text-to-Speech (TTS) methods typically employ a sequential approach with an Acoustic Model (AM) and a vocoder, using a Mel spectrogram as an intermediate representation. However, in home environments, TTS systems often struggle with issues such as in...

  • Article
  • Open Access
10 Citations
4,405 Views
23 Pages

25 November 2024

An important hurdle in medical diagnostics is the high-quality and interpretable classification of audio signals. In this study, we present an image-based representation of infant crying audio files to predict abnormal infant cries using a vision tra...

(This article belongs to the Special Issue Deep Learning for Image, Video and Signal Processing)
  • Article
  • Open Access
21 Citations
7,243 Views
30 Pages

Language Accent Detection with CNN Using Sparse Data from a Crowd-Sourced Speech Archive

  • Veranika Mikhailava,
  • Mariia Lesnichaia,
  • Natalia Bogach,
  • Iurii Lezhenin and ,
  • John Blake and
  • Evgeny Pyshkin
  • + 1 author+ 0 author

13 August 2022

The problem of accent recognition has received a lot of attention with the development of Automatic Speech Recognition (ASR) systems. The crux of the problem is that conventional acoustic language models adapted to fit standard language corpora are u...

(This article belongs to the Special Issue Advances in Machine Learning Methods for Natural Language Processing and Computational Linguistics)
  • Article
  • Open Access
3 Citations
1,975 Views
14 Pages

6 December 2023

The CMT welding process has been widely used for aluminum alloy welding. The weld’s penetration state is essential for evaluating the welding quality. Arc sound signals contain a wealth of information related to the penetration state of the wel...

  • Article
  • Open Access
495 Views
20 Pages

18 June 2026

Sound event detection models commonly rely on spectrogram representations of audio signals and recent approaches have adapted image-based object detection architectures to acoustic domains. This paradigm is suitable for respiratory monitoring, where...

(This article belongs to the Topic Signal Analysis and Biomedical Imaging for Precision Medicine)
  • Article
  • Open Access
14 Citations
3,404 Views
13 Pages

18 February 2022

Pipeline transportation is the main method for long-distance gas transportation; however, ponding in the pipeline can affect transportation efficiency and even cause corrosion to the pipeline in some cases. A non-destructive method to detect pipeline...

(This article belongs to the Topic Structural Health Monitoring and Non-destructive Testing for Large-Scale Structures)
  • Article
  • Open Access
100 Citations
12,748 Views
11 Pages

A Hybrid CNN and RNN Variant Model for Music Classification

  • Mohsin Ashraf,
  • Fazeel Abid,
  • Ikram Ud Din,
  • Jawad Rasheed and ,
  • Mirsat Yesiltepe,
  • Sook Fern Yeo and
  • Merve T. Ersoy
  • + 2 authors+ 0 author

22 January 2023

Music genre classification has a significant role in information retrieval for the organization of growing collections of music. It is challenging to classify music with reliable accuracy. Many methods have utilized handcrafted features to identify u...

(This article belongs to the Special Issue Machine-Learning-Based Feature Extraction and Selection)
  • Article
  • Open Access
23 Citations
4,181 Views
22 Pages

Speech Emotion Recognition Based on Deep Residual Shrinkage Network

  • Tian Han,
  • Zhu Zhang,
  • Mingyuan Ren,
  • Changchun Dong and ,
  • Xiaolin Jiang and
  • Quansheng Zhuang
  • + 1 author+ 0 author

Speech emotion recognition (SER) technology is significant for human–computer interaction, and this paper studies the features and modeling of SER. Mel-spectrogram is introduced and utilized as the feature of speech, and the theory and extracti...

(This article belongs to the Special Issue Deep Learning in Image Processing and Pattern Recognition)
  • Article
  • Open Access
28 Citations
11,515 Views
18 Pages

21 June 2025

Speech emotion recognition (SER) plays a vital role in enhancing human–computer interaction (HCI) and can be applied in affective computing, virtual support, and healthcare. This research presents a high-performance SER framework based on a lig...

(This article belongs to the Special Issue Artificial Intelligence Methods for Human-Computer Interaction)
  • Article
  • Open Access
41 Citations
5,623 Views
21 Pages

28 September 2020

Speech emotion recognition (SER) classifies emotions using low-level features or a spectrogram of an utterance. When SER methods are trained and tested using different datasets, they have shown performance reduction. Cross-corpus SER research identif...

(This article belongs to the Special Issue Artificial Intelligence and Sensors)
  • Article
  • Open Access
8 Citations
2,793 Views
14 Pages

Percussion and PSO-SVM-Based Damage Detection for Refractory Materials

  • Dan Yang,
  • Yi Peng,
  • Ti Zhou,
  • Tao Wang and
  • Guangtao Lu

4 January 2023

Refractory materials are basic materials widely used in industrial furnaces and thermal equipment. Their microstructure is similar to that of many heterogeneous high-performance materials used in micro/nanodevices. The presence of damage can reduce t...

(This article belongs to the Section D: Materials and Processing)
  • Article
  • Open Access
31 Citations
9,245 Views
19 Pages

27 December 2019

This paper presents a sound source distance estimation (SSDE) method using a convolutional recurrent neural network (CRNN). We approach the sound source distance estimation task as an image classification problem, and we aim to classify a given audio...

(This article belongs to the Special Issue Speech, Acoustics, Audio Signal Processing and Applications in Sensors)
  • Article
  • Open Access
458 Views
17 Pages

4 September 2026

End-of-Line (EoL) quality inspection of electric motors requires reliable detection of manufacturing faults before products leave the production line. However, conventional supervised deep learning approaches depend on a sufficient number of labeled...

(This article belongs to the Special Issue Process Monitoring and Quality Optimization in Manufacturing Engineering)
  • Article
  • Open Access
1,190 Views
27 Pages

23 October 2025

Very-low-frequency (VLF) passive sonar detection is one of the core technologies for maritime surveillance, although its performance is often severely affected by strong impulsive ocean ambient noise interference. This paper, for the first time, prop...

(This article belongs to the Special Issue Advanced Studies in Marine Data Analysis)
  • Article
  • Open Access
8 Citations
3,472 Views
23 Pages

16 November 2023

Deep learning models can produce unstable results by introducing imperceptible perturbations that are difficult for humans to recognize. This can have a significant impact on the accuracy and security of deep learning applications due to their poorly...

(This article belongs to the Special Issue Recent Advances in Underwater and Terrestrial Remote Sensing)
  • Article
  • Open Access
1 Citations
3,244 Views
27 Pages

Analysis of Industrial Product Sound by Applying Image Similarity Measures

  • Dejan G. Ćirić,
  • Zoran H. Perić,
  • Nikola J. Vučić and
  • Miljan P. Miletić

17 January 2023

The sounds of certain industrial products (machines) carry important information about these products. Product classification or malfunction detection can be performed utilizing a product’s sound. In this regard, sound can be used as it is or it can...

(This article belongs to the Section E1: Mathematics and Computer Science)
  • Article
  • Open Access
7 Citations
4,545 Views
15 Pages

Prosodic Spatio-Temporal Feature Fusion with Attention Mechanisms for Speech Emotion Recognition

  • Kristiawan Nugroho,
  • Imam Husni Al Amin,
  • Nina Anggraeni Noviasari and
  • De Rosal Ignatius Moses Setiadi

31 August 2025

Speech Emotion Recognition (SER) plays a vital role in supporting applications such as healthcare, human–computer interaction, and security. However, many existing approaches still face challenges in achieving robust generalization and maintain...

(This article belongs to the Special Issue Multimodal Pattern Recognition of Social Signals in HCI (2nd Edition))
  • Article
  • Open Access
9 Citations
4,196 Views
28 Pages

29 June 2022

For Thai vowel pronunciation, it is very important to know that when mispronunciation occurs, the meanings of words change completely. Thus, effective and standardized practice is essential to pronouncing words correctly as a native speaker. Since th...

  • Article
  • Open Access
6 Citations
9,554 Views
29 Pages

23 February 2022

The use of the mel spectrogram as a signal parameterization for voice generation is quite recent and linked to the development of neural vocoders. These are deep neural networks that allow reconstructing high-quality speech from a given mel spectrogr...

(This article belongs to the Special Issue Signal Processing Based on Convolutional Neural Network)
  • Article
  • Open Access
1 Citations
1,094 Views
26 Pages

9 April 2026

Speech deception detection often suffers from overly narrow feature representations and limited robustness under changing recording conditions. To address these limitations, we propose MFF-Net, a multi-feature fusion network with three modules. The f...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
7 Citations
5,406 Views
16 Pages

Identification of Elephant Rumbles in Seismic Infrasonic Signals Using Spectrogram-Based Machine Learning

  • Janitha Vidunath,
  • Chamath Shamal,
  • Ravindu Hiroshan,
  • Udani Gamlath and ,
  • Chamira U. S. Edussooriya and
  • Sudath R. Munasinghe
  • + 1 author+ 0 author

29 November 2024

This paper presents several machine learning methods and highlights the most effective one for detecting elephant rumbles in infrasonic seismic signals. The design and implementation of electronic circuitry to amplify, filter, and digitize the seismi...

  • Article
  • Open Access
3 Citations
2,723 Views
17 Pages

20 November 2021

The presented paper is concerned with detection of presentation attacks against unsupervised remote biometric speaker verification, using a well-known challenge–response scheme. We propose a novel approach to convolutional phoneme classifier tr...

(This article belongs to the Special Issue Sensors and Pattern Recognition Methods for Security and Industrial Applications (SPR-SIA))
  • Article
  • Open Access
4 Citations
1,477 Views
16 Pages

Identifying instruments in polyphonic audio is challenging due to overlapping spectra and variations in timbre and playing styles. This task is central to music information retrieval, with applications in transcription, recommendation, and indexing....

  • Communication
  • Open Access
13 Citations
8,516 Views
12 Pages

3 November 2021

Distinguishing between a dangerous audio event like a gun firing and other non-life-threatening events, such as a plastic bag bursting, can mean the difference between life and death and, therefore, the necessary and unnecessary deployment of public...

(This article belongs to the Section Sensor Networks)
  • Article
  • Open Access
4 Citations
4,778 Views
17 Pages

5 November 2025

In this study, we present a pilot investigation using a single Purple Heart plant (Tradescantia pallida) to explore whether bioelectrical signals for dual-purpose classification tasks: environmental state detection and human emotion recognition. Usin...

(This article belongs to the Section Optical and Photonic Biosensors)
  • Article
  • Open Access
18 Citations
5,144 Views
13 Pages

A Hybrid Parallel Computing Architecture Based on CNN and Transformer for Music Genre Classification

  • Jiyang Chen,
  • Xiaohong Ma,
  • Shikuan Li,
  • Sile Ma and ,
  • Zhizheng Zhang and
  • Xiaojing Ma
  • + 1 author+ 0 author

21 August 2024

Music genre classification (MGC) is the basis for the efficient organization, retrieval, and recommendation of music resources, so it has important research value. Convolutional neural networks (CNNs) have been widely used in MGC and achieved excelle...

(This article belongs to the Special Issue Recent Advances of Cloud, Edge, and Parallel Computing)
  • Article
  • Open Access
1,191 Views
21 Pages

CNN-Based Acoustic Gait Recognition: A Benchmarking Framework

  • Ilaisaane Tilisa Fonua and
  • Shahram Latifi

Acoustic gait recognition is an emerging passive biometric modality that identifies individuals by unique walking sound patterns. This work presents a reproducible benchmarking framework for convolutional neural network (CNN)-based acoustic gait reco...

(This article belongs to the Special Issue Machine Learning Applications in Computer Vision, Data Modeling, and Natural Language Processing)
  • Article
  • Open Access
18 Citations
3,553 Views
18 Pages

10 November 2023

Recent successes in deep learning have inspired researchers to apply deep neural networks to Acoustic Event Classification (AEC). While deep learning methods can train effective AEC models, they are susceptible to overfitting due to the models’...

(This article belongs to the Special Issue Advances in Acoustic Sensors and Deep Audio Pattern Recognition)
  • Article
  • Open Access
318 Views
21 Pages

2 September 2026

Speaker recognition models are typically enrolled using neutral speech, yet real users rarely speak under emotionally neutral conditions. Emotion alters prosody, spectral structure, articulation, and speaking rate, shifting utterances away from the a...

(This article belongs to the Special Issue Signal Processing and Machine Learning, 2nd Edition)
  • Article
  • Open Access
3 Citations
804 Views
19 Pages

This study rigorously evaluates 13 Convolutional Neural Network (CNN) architectures for Thai dialect recognition. By treating Automatic Speech Recognition (ASR) as a computer vision texture classification task, we processed an extensive 840-h dataset...

(This article belongs to the Special Issue Advances in Machine Learning for Image Classification)
  • Article
  • Open Access
37 Citations
6,065 Views
23 Pages

Speech impairments often emerge as one of the primary indicators of Parkinson’s disease (PD), albeit not readily apparent in its early stages. While previous studies focused predominantly on binary PD detection, this research explored the use o...

(This article belongs to the Special Issue Machine Learning and Artificial Intelligence for Biomedical Applications, 2nd Edition)

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