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360 Results Found

  • Article
  • Open Access
11 Citations
3,844 Views
22 Pages

Accurate pronunciation of speech sounds is essential in communication. As children learn their native language, they refine the movements necessary for intelligible speech. While there is variability in the order of acquisition of speech sounds, ther...

(This article belongs to the Special Issue AI in Knowledge-Based Information and Decision Support Systems)
  • Article
  • Open Access
20 Citations
4,906 Views
15 Pages

18 August 2022

Speech Emotion Classification (SEC) relies heavily on the quality of feature extraction and selection from the speech signal. Improvement on this to enhance the classification of emotion had attracted significant attention from researchers. Many prim...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
2,802 Views
26 Pages

Feature Generation with Genetic Algorithms for Imagined Speech Electroencephalogram Signal Classification

  • Edgar Lara-Arellano,
  • Andras Takacs,
  • Saul Tovar-Arriaga and
  • Juvenal Rodríguez-Reséndiz

10 April 2025

This work presents a method for classifying EEG (Electroencephalogram) signals generated when a person concentrates on specific words, defined as “Imagined Speech”. Imagined speech is essential to enhance problem-solving, memory, and lang...

  • 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
1 Citations
1,101 Views
13 Pages

This study aims to develop effective screening tools for cognitive impairment by integrating optimised speech classification features with various machine learning models. A total of 65 patients diagnosed with early-stage Mild Cognitive Impairment (M...

  • Article
  • Open Access
28 Citations
5,589 Views
26 Pages

On the Speech Properties and Feature Extraction Methods in Speech Emotion Recognition

  • Juraj Kacur,
  • Boris Puterka,
  • Jarmila Pavlovicova and
  • Milos Oravec

8 March 2021

Many speech emotion recognition systems have been designed using different features and classification methods. Still, there is a lack of knowledge and reasoning regarding the underlying speech characteristics and processing, i.e., how basic characte...

(This article belongs to the Section Physical Sensors)
  • Systematic Review
  • Open Access
34 Citations
8,700 Views
24 Pages

4 September 2024

Parkinson’s disease (PD), the second most prevalent neurodegenerative disorder worldwide, frequently presents with early-stage speech impairments. Recent advancements in Artificial Intelligence (AI), particularly deep learning (DL), have signif...

(This article belongs to the Special Issue Deep Learning and Machine Learning in Biomedical Data)
  • Systematic Review
  • Open Access
71 Citations
10,632 Views
16 Pages

Background: Alzheimer’s disease (AD) has paramount importance due to its rising prevalence, the impact on the patient and society, and the related healthcare costs. However, current diagnostic techniques are not designed for frequent mass scree...

  • Article
  • Open Access
15 Citations
3,475 Views
24 Pages

Gaussian-Filtered High-Frequency-Feature Trained Optimized BiLSTM Network for Spoofed-Speech Classification

  • Hiren Mewada,
  • Jawad F. Al-Asad,
  • Faris A. Almalki,
  • Adil H. Khan and ,
  • Nouf Abdullah Almujally,
  • Samir El-Nakla and
  • Qamar Naith
  • + 2 authors+ 0 author

24 July 2023

Voice-controlled devices are in demand due to their hands-free controls. However, using voice-controlled devices in sensitive scenarios like smartphone applications and financial transactions requires protection against fraudulent attacks referred to...

(This article belongs to the Section Sensor Networks)
  • Article
  • Open Access
11 Citations
3,819 Views
12 Pages

Recently, automatic speech recognition (ASR) and visual speech recognition (VSR) have been widely researched owing to the development in deep learning. Most VSR research works focus only on frontal face images. However, assuming real scenes, it is ob...

(This article belongs to the Special Issue Selected Papers from the International Conference on Communications, Signal Processing and Their Applications (ICCSPA ’20))
  • Article
  • Open Access
36 Citations
6,287 Views
23 Pages

Textual Feature Extraction Using Ant Colony Optimization for Hate Speech Classification

  • Shilpa Gite,
  • Shruti Patil,
  • Deepak Dharrao,
  • Madhuri Yadav and ,
  • Sneha Basak,
  • Arundarasi Rajendran and
  • Ketan Kotecha
  • + 2 authors+ 0 author

Feature selection and feature extraction have always been of utmost importance owing to their capability to remove redundant and irrelevant features, reduce the vector space size, control the computational time, and improve performance for more accur...

(This article belongs to the Special Issue Big Data and Cognitive Computing in 2023)
  • Review
  • Open Access
11 Citations
7,724 Views
29 Pages

Spectrogram Features for Audio and Speech Analysis

  • Ian McLoughlin,
  • Lam Pham,
  • Yan Song,
  • Xiaoxiao Miao and ,
  • Huy Phan,
  • Pengfei Cai,
  • Qing Gu,
  • Jiang Nan,
  • Haoyu Song and
  • Donny Soh
  • + 5 authors+ 0 author

6 January 2026

Spectrogram-based representations have grown to dominate the feature space for deep learning audio analysis systems, and are often adopted for speech analysis also. Initially, the primary motivation behind spectrogram-based representations was their...

(This article belongs to the Special Issue AI in Audio Analysis: Spectrogram-Based Recognition)
  • Article
  • Open Access
38 Citations
5,125 Views
37 Pages

CNN-Based Identification of Parkinson’s Disease from Continuous Speech in Noisy Environments

  • Paul Faragó,
  • Sebastian-Aurelian Ștefănigă,
  • Claudia-Georgiana Cordoș,
  • Laura-Ioana Mihăilă and ,
  • Sorin Hintea,
  • Ana-Sorina Peștean,
  • Michel Beyer,
  • Lăcrămioara Perju-Dumbravă and
  • Robert Radu Ileșan
  • + 4 authors+ 0 author

Parkinson’s disease is a progressive neurodegenerative disorder caused by dopaminergic neuron degeneration. Parkinsonian speech impairment is one of the earliest presentations of the disease and, along with tremor, is suitable for pre-diagnosis...

(This article belongs to the Special Issue Artificial Intelligence in Biomedical Diagnosis and Prognosis)
  • Article
  • Open Access
5 Citations
3,523 Views
19 Pages

Speaker Profiling Based on the Short-Term Acoustic Features of Vowels

  • Mohammad Ali Humayun,
  • Junaid Shuja and
  • Pg Emeroylariffion Abas

Speech samples can provide valuable information regarding speaker characteristics, including their social backgrounds. Accent variations with speaker backgrounds reflect corresponding acoustic features of speech, and these acoustic variations can be...

(This article belongs to the Section Information and Communication Technologies)
  • Article
  • Open Access
7 Citations
4,175 Views
8 Pages

7 November 2018

The competition of speech recognition technology related to smartphones is now getting into full swing with the widespread internet of thing (IoT) devices. For robust speech recognition, it is necessary to detect speech signals in various acoustic en...

(This article belongs to the Special Issue Emerging Approaches and Advances in Big Data)
  • Article
  • Open Access
373 Views
34 Pages

Automated Linguistic-Feature Analysis of Speech Related to Impulsivity Trait in Children and Adolescents

  • Manuela Gómez-Suta,
  • Julian D. Echeverry-Correa and
  • Paula M. Herrera-Gómez

Impulsivity is a common trait and is understood as a symptom of various disorders such as Attention-Deficit/Hyperactivity Disorder (ADHD). We previously proposed ImpulsivityBank protocol, which is a standardized discourse protocol for retrieving spee...

  • Article
  • Open Access
1,559 Views
14 Pages

18 November 2025

Background/Objectives: Speech produced by individuals with hearing loss differs notably from that of normal-hearing (NH) individuals. Although cochlear implants (CIs) provide sufficient auditory input to support speech acquisition and control, there...

(This article belongs to the Section Hearing)
  • Article
  • Open Access
31 Citations
7,509 Views
21 Pages

14 January 2015

The classification of emotional speech is mostly considered in speech-related research on human-computer interaction (HCI). In this paper, the purpose is to present a novel feature extraction based on multi-resolutions texture image information (MRTI...

(This article belongs to the Section Physical Sensors)
  • Article
  • Open Access
144 Citations
11,122 Views
18 Pages

Impact of Feature Selection Algorithm on Speech Emotion Recognition Using Deep Convolutional Neural Network

  • Misbah Farooq,
  • Fawad Hussain,
  • Naveed Khan Baloch,
  • Fawad Riasat Raja and ,
  • Heejung Yu and
  • Yousaf Bin Zikria
  • + 1 author+ 0 author

23 October 2020

Speech emotion recognition (SER) plays a significant role in human–machine interaction. Emotion recognition from speech and its precise classification is a challenging task because a machine is unable to understand its context. For an accurate...

(This article belongs to the Special Issue VOICE Sensors with Deep Learning)
  • Article
  • Open Access
31 Citations
7,432 Views
36 Pages

Automatic Assessment of Aphasic Speech Sensed by Audio Sensors for Classification into Aphasia Severity Levels to Recommend Speech Therapies

  • Herath Mudiyanselage Dhammike Piyumal Madhurajith Herath,
  • Weraniyagoda Arachchilage Sahanaka Anuththara Weraniyagoda,
  • Rajapakshage Thilina Madhushan Rajapaksha,
  • Patikiri Arachchige Don Shehan Nilmantha Wijesekara and ,
  • Kalupahana Liyanage Kushan Sudheera and
  • Peter Han Joo Chong
  • + 1 author+ 0 author

14 September 2022

Aphasia is a type of speech disorder that can cause speech defects in a person. Identifying the severity level of the aphasia patient is critical for the rehabilitation process. In this research, we identify ten aphasia severity levels motivated by s...

(This article belongs to the Section Communications)
  • Article
  • Open Access
128 Citations
10,694 Views
14 Pages

Emotion Recognition from Chinese Speech for Smart Affective Services Using a Combination of SVM and DBN

  • Lianzhang Zhu,
  • Leiming Chen,
  • Dehai Zhao,
  • Jiehan Zhou and
  • Weishan Zhang

24 July 2017

Accurate emotion recognition from speech is important for applications like smart health care, smart entertainment, and other smart services. High accuracy emotion recognition from Chinese speech is challenging due to the complexities of the Chinese...

(This article belongs to the Special Issue New Advances in Identification, Information & Knowledge in the Internet of Things)
  • Article
  • Open Access
98 Citations
11,791 Views
19 Pages

1 September 2021

Speech signals are being used as a primary input source in human–computer interaction (HCI) to develop several applications, such as automatic speech recognition (ASR), speech emotion recognition (SER), gender, and age recognition. Classifying speake...

(This article belongs to the Special Issue Signal, Image Processing and Computer Vision in Smart Living Applications)
  • Article
  • Open Access
54 Citations
8,809 Views
21 Pages

Improved Feature Parameter Extraction from Speech Signals Using Machine Learning Algorithm

  • Akmalbek Bobomirzaevich Abdusalomov,
  • Furkat Safarov,
  • Mekhriddin Rakhimov,
  • Boburkhon Turaev and
  • Taeg Keun Whangbo

24 October 2022

Speech recognition refers to the capability of software or hardware to receive a speech signal, identify the speaker’s features in the speech signal, and recognize the speaker thereafter. In general, the speech recognition process involves thre...

(This article belongs to the Special Issue Application of Semantic Technologies in Sensors and Sensing Systems)
  • Article
  • Open Access
34 Citations
8,271 Views
18 Pages

17 June 2019

The most used and well-known acoustic features of a speech signal, the Mel frequency cepstral coefficients (MFCC), cannot characterize emotions in speech sufficiently when a classification is performed to classify both discrete emotions (i.e., anger,...

(This article belongs to the Special Issue Advances in Deep Learning)
  • Article
  • Open Access
1 Citations
1,967 Views
24 Pages

Beyond Short-Frame Acoustic Features: Capturing Long-Term Speech Patterns for Depression Detection

  • Shizuku Fushimi,
  • Mohammad Aiman Azani,
  • Mizuto Chiba and
  • Yoshifumi Okada

Speech-based depression detection is promising for objective mental health assessment. However, conventional methods relying on short-frame acoustic features often fail to capture long-term temporal and behavioral characteristics of speech essential...

(This article belongs to the Section Assistive Technologies)
  • Article
  • Open Access
19 Citations
4,961 Views
22 Pages

26 August 2024

Advancements in deep learning speech representations have facilitated the effective use of extensive unlabeled speech datasets for Parkinson’s disease (PD) modeling with minimal annotated data. This study employs the non-fine-tuned wav2vec 1.0...

(This article belongs to the Section Biomedical Sensors)
  • Article
  • Open Access
14 Citations
4,088 Views
15 Pages

Classification of Depression and Its Severity Based on Multiple Audio Features Using a Graphical Convolutional Neural Network

  • Momoko Ishimaru,
  • Yoshifumi Okada,
  • Ryunosuke Uchiyama,
  • Ryo Horiguchi and
  • Itsuki Toyoshima

Audio features are physical features that reflect single or complex coordinated movements in the vocal organs. Hence, in speech-based automatic depression classification, it is critical to consider the relationship among audio features. Here, we prop...

(This article belongs to the Special Issue Artificial Intelligence Technologies for Healthcare)
  • Article
  • Open Access
3 Citations
4,297 Views
15 Pages

8 February 2022

Audio classification algorithms for hearing aids require excellent classification accuracy. To achieve effective performance, we first present a novel supervised method, involving a spectral entropy-based magnitude feature with a random forest classi...

  • Article
  • Open Access
17 Citations
5,914 Views
18 Pages

25 March 2020

The conventional speech recognition systems can handle the input speech of a specific single language. To realize multi-lingual speech recognition, a language should be firstly identified from input speech. This study proposes an efficient Language I...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
6 Citations
5,508 Views
22 Pages

Multi-Label Emotion Recognition of Korean Speech Data Using Deep Fusion Models

  • Seoin Park,
  • Byeonghoon Jeon,
  • Seunghyun Lee and
  • Janghyeok Yoon

28 August 2024

As speech is the most natural way for humans to express emotions, studies on Speech Emotion Recognition (SER) have been conducted in various ways However, there are some areas for improvement in previous SER studies: (1) while some studies have perfo...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
45 Citations
11,009 Views
15 Pages

21 February 2021

The goal of the human interface is to recognize the user’s emotional state precisely. In the speech emotion recognition study, the most important issue is the effective parallel use of the extraction of proper speech features and an appropriate class...

(This article belongs to the Special Issue AI, Machine Learning and Deep Learning in Signal Processing)
  • Article
  • Open Access
2 Citations
2,116 Views
13 Pages

10 January 2024

The characterising sound required for the Acoustic Scene Classification (ASC) system is contained in the ambient signal. However, in practice, this is often distorted by e.g., foreground speech of the speakers in the surroundings. Previously, based o...

(This article belongs to the Section Acoustics and Vibrations)
  • Article
  • Open Access
10 Citations
4,158 Views
16 Pages

28 August 2021

Speech signals contain abundant information on personal emotions, which plays an important part in the representation of human potential characteristics and expressions. However, the deficiency of emotion speech data affects the development of speech...

(This article belongs to the Section Artificial Intelligence)
  • Article
  • Open Access
26 Citations
5,832 Views
15 Pages

A Deep Learning Method Using Gender-Specific Features for Emotion Recognition

  • Li-Min Zhang,
  • Yang Li,
  • Yue-Ting Zhang,
  • Giap Weng Ng and ,
  • Yu-Beng Leau and
  • Hao Yan
  • + 1 author+ 0 author

25 January 2023

Speech reflects people’s mental state and using a microphone sensor is a potential method for human–computer interaction. Speech recognition using this sensor is conducive to the diagnosis of mental illnesses. The gender difference of spe...

(This article belongs to the Section Intelligent Sensors)
  • Article
  • Open Access
35 Citations
5,392 Views
23 Pages

13 February 2020

Speech segment detection based on gated recurrent unit (GRU) recurrent neural networks for the Kurdish language was investigated in the present study. The novelties of the current research are the utilization of a GRU in Kurdish speech segment detect...

(This article belongs to the Special Issue Intelligent Speech and Acoustic Signal Processing)
  • Article
  • Open Access
19 Citations
4,494 Views
14 Pages

11 April 2019

Automatic gender classification in speech is a challenging research field with a wide range of applications in HCI (human-computer interaction). A couple of decades of research have shown promising results, but there is still a need for improvement....

  • Article
  • Open Access
18 Citations
6,506 Views
39 Pages

11 July 2019

In multi-modal emotion aware frameworks, it is essential to estimate the emotional features then fuse them to different degrees. This basically follows either a feature-level or decision-level strategy. In all likelihood, while features from several...

  • Article
  • Open Access
52 Citations
6,329 Views
12 Pages

Machine Learning Approach to Dysphonia Detection

  • Zuzana Dankovičová,
  • Dávid Sovák,
  • Peter Drotár and
  • Liberios Vokorokos

15 October 2018

This paper addresses the processing of speech data and their utilization in a decision support system. The main aim of this work is to utilize machine learning methods to recognize pathological speech, particularly dysphonia. We extracted 1560 speech...

  • Article
  • Open Access
14 Citations
7,379 Views
19 Pages

Combining wav2vec 2.0 Fine-Tuning and ConLearnNet for Speech Emotion Recognition

  • Chenjing Sun,
  • Yi Zhou,
  • Xin Huang,
  • Jichen Yang and
  • Xianhua Hou

Speech emotion recognition poses challenges due to the varied expression of emotions through intonation and speech rate. In order to reduce the loss of emotional information during the recognition process and to enhance the extraction and classificat...

(This article belongs to the Special Issue New Advances in Affective Computing)
  • Article
  • Open Access
12 Citations
4,750 Views
17 Pages

Deep-Learning-Based Automated Classification of Chinese Speech Sound Disorders

  • Yao-Ming Kuo,
  • Shanq-Jang Ruan,
  • Yu-Chin Chen and
  • Ya-Wen Tu

This article describes a system for analyzing acoustic data to assist in the diagnosis and classification of children’s speech sound disorders (SSDs) using a computer. The analysis concentrated on identifying and categorizing four distinct type...

(This article belongs to the Special Issue Current Research on Developmental Speech and Language Delays and Disorders)
  • Article
  • Open Access
21 Citations
7,239 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
10 Citations
7,136 Views
20 Pages

Developing a Dataset of Audio Features to Classify Emotions in Speech

  • Alvaro A. Colunga-Rodriguez,
  • Alicia Martínez-Rebollar,
  • Hugo Estrada-Esquivel,
  • Eddie Clemente and
  • Odette A. Pliego-Martínez

Emotion recognition in speech has gained increasing relevance in recent years, enabling more personalized interactions between users and automated systems. This paper presents the development of a dataset of features obtained from RAVDESS (Ryerson Au...

(This article belongs to the Section Computational Engineering)
  • Article
  • Open Access
30 Citations
9,521 Views
18 Pages

Alzheimer’s Dementia Speech (Audio vs. Text): Multi-Modal Machine Learning at High vs. Low Resolution

  • Prachee Priyadarshinee,
  • Christopher Johann Clarke,
  • Jan Melechovsky,
  • Cindy Ming Ying Lin and ,
  • Balamurali B. T. and
  • Jer-Ming Chen
  • + 1 author+ 0 author

27 March 2023

Automated techniques to detect Alzheimer’s Dementia through the use of audio recordings of spontaneous speech are now available with varying degrees of reliability. Here, we present a systematic comparison across different modalities, granulari...

(This article belongs to the Special Issue Computational Methods and Engineering Solutions to Voice III)
  • Article
  • Open Access
2 Citations
2,200 Views
18 Pages

Pyramid Feature Attention Network for Speech Resampling Detection

  • Xinyu Zhou,
  • Yujin Zhang,
  • Yongqi Wang,
  • Jin Tian and
  • Shaolun Xu

1 June 2024

Speech forgery and tampering, increasingly facilitated by advanced audio editing software, pose significant threats to the integrity and privacy of digital speech avatars. Speech resampling is a post-processing operation of various speech-tampering m...

(This article belongs to the Special Issue Deep Learning for Speech, Image and Language Processing)
  • Article
  • Open Access
7 Citations
3,155 Views
16 Pages

12 August 2022

Multimodality has been widely used for sentiment analysis tasks, especially for speech sentiment analysis. Compared with the emotion expression of most text languages, speech is more intuitive for human emotion, as speech contains more and richer emo...

  • Article
  • Open Access
255 Views
24 Pages

Machine Learning-Based Screening for Obstructive Sleep Apnea Using Photographic Craniofacial and Speech-Derived Acoustic Features

  • Marissa López-Zaldivar,
  • Sulema Torres-Ramos,
  • Israel Román-Godínez,
  • Daniel Hernández-Gordillo and ,
  • Aurora Sofia Vázquez-Jiménez and
  • Ricardo Antonio Salido-Ruiz
  • + 1 author+ 0 author

18 October 2026

Obstructive sleep apnea (OSA) is a prevalent disorder for which accessible non-invasive screening approaches remain of interest. This study evaluated photographic craniofacial descriptors and speech-derived acoustic features for Apnea–Hypopnea...

(This article belongs to the Special Issue Artificial Intelligence and Machine Learning for Biomedical Diagnostics and Prognostics)
  • Article
  • Open Access
4 Citations
4,974 Views
20 Pages

28 March 2025

Voice data contain a wealth of temporal and spectral information and can be a valuable resource for disease classification. However, traditional methods are often not effective in capturing the key features required for the classification of multiple...

(This article belongs to the Section Medical & Healthcare AI)
  • Article
  • Open Access
6 Citations
4,037 Views
17 Pages

Community Governance Based on Sentiment Analysis: Towards Sustainable Management and Development

  • Xudong Zhang,
  • Zejun Yan,
  • Qianfeng Wu,
  • Ke Wang and ,
  • Kelei Miao,
  • Zhangquan Wang and
  • Yourong Chen
  • + 2 authors+ 0 author

2 February 2023

The promotion of community governance by digital means is an important research topic in developing smart cities. Currently, community governance is mostly based on reactive response, which lacks timely and proactive technical means for emergency mon...

(This article belongs to the Section Sustainable Urban and Rural Development)
  • Article
  • Open Access
33 Citations
5,092 Views
14 Pages

Modeling Speech Emotion Recognition via Attention-Oriented Parallel CNN Encoders

  • Fazliddin Makhmudov,
  • Alpamis Kutlimuratov,
  • Farkhod Akhmedov,
  • Mohamed S. Abdallah and
  • Young-Im Cho

6 December 2022

Meticulous learning of human emotions through speech is an indispensable function of modern speech emotion recognition (SER) models. Consequently, deriving and interpreting various crucial speech features from raw speech data are complicated responsi...

(This article belongs to the Special Issue AI Technologies and Smart City)
  • Article
  • Open Access
16 Citations
5,339 Views
20 Pages

Multi-Label Extreme Learning Machine (MLELMs) for Bangla Regional Speech Recognition

  • Prommy Sultana Hossain,
  • Amitabha Chakrabarty,
  • Kyuheon Kim and
  • Md. Jalil Piran

27 May 2022

Extensive research has been conducted in the past to determine age, gender, and words spoken in Bangla speech, but no work has been conducted to identify the regional language spoken by the speaker in Bangla speech. Hence, in this study, we create a...

(This article belongs to the Special Issue Automatic Speech Recognition)

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