Results 11 to 20 of about 600 (157)

An automatic cough counting method and system construction for portable devices [PDF]

open access: yesFrontiers in Bioengineering and Biotechnology
IntroductionCough is a common symptom of respiratory diseases, and prolonged monitoring of cough can help assist doctors in making judgments about patients’ conditions, among which cough frequency is an indicator that characterizes the state of the ...
Yixuan Wang   +9 more
doaj   +2 more sources

Android Voiceprint Unlocking System Based on Mel Frequency Cepstrum Coefficient and Dynamic Time Warping [PDF]

open access: yesJisuanji gongcheng, 2017
Android devices usually use digital or graphical password for unlocking screen,but such form of password is not safe enough,and some versions of Android exist keyguard bypass vulnerability.Therefore,this paper designs an Android keyguard system which ...
CHEN Jinfei,XU Xin
doaj   +1 more source

Pengenalan Suara Burung Menggunakan Mel Frequency Cepstrum Coefficient dan Jaringan Syaraf Tiruan pada Sistem Pengusir Hama Burung

open access: yesJurnal Nasional Teknik Elektro, 2016
Indonesia is one of the agricultural country that produces crops. Nevertheless, Indonesia still imports rice from other countries because of crop decreasement. One of its factors is caused by bird pests.
Fajar Budiman   +3 more
doaj   +3 more sources

Use of Machine Learning for Deception Detection From Spectral and Cepstral Features of Speech Signals

open access: yesIEEE Access, 2021
In this research, four unique nonlinear speech features are extracted and analyzed to study the dissimilarity pattern between when the speaker is being deceitful and truthful based on how human speech is perceived.
Sinead V. Fernandes, Muhammad S. Ullah
doaj   +1 more source

A Stator Slot Wedge Loosening Offline Detection System Based on an Intelligent Maintenance Robot of a Large Hydro Generator

open access: yesMachines, 2022
Hydropower is at the backbone of low-carbon clean energy, while large hydroelectric generators play a key role in hydropower systems. In this paper, the tightness detection of stator trough wedges in the offline state of large hydroelectric generators is
Xiaoping Xie   +3 more
doaj   +1 more source

An Urdu speech corpus for emotion recognition [PDF]

open access: yesPeerJ Computer Science, 2022
Emotion recognition from acoustic signals plays a vital role in the field of audio and speech processing. Speech interfaces offer humans an informal and comfortable means to communicate with machines. Emotion recognition from speech signals has a variety
Awais Asghar   +4 more
doaj   +2 more sources

Mel Frequency Cepstral Coefficient and its Applications: A Review

open access: yesIEEE Access, 2022
Feature extraction and representation has significant impact on the performance of any machine learning method. Mel Frequency Cepstrum Coefficient (MFCC) is designed to model features of audio signal and is widely used in various fields.
Zrar Kh. Abdul   +1 more
doaj   +1 more source

Recognition of behavior state of Penaeus vannamei based on passive acoustic technology

open access: yesFrontiers in Marine Science, 2022
Underwater signal processing based on passive acoustic technology has carried out a lot of research on the behavioral sound of underwater creatures and the protection of marine resources, which proves the feasibility of passive acoustic technology for ...
Maochun Wei   +3 more
doaj   +1 more source

Speaker Age and Gender Estimation Based on Deep Learning Bidirectional Long-Short Term Memory (BiLSTM)

open access: yesTikrit Journal of Pure Science, 2021
Estimating the age and gender of the speaker has gained great importance in recent years due to its necessity in various commercial, medical and forensic applications.
Aalaa Ahmed Mohammed   +1 more
doaj   +1 more source

A short utterance speaker recognition method with improved cepstrum–CNN

open access: yesSN Applied Sciences, 2022
In this study, an improved cepstrum-convolutional neural network is proposed, which can solve the problem of low recognition accuracy of 1-s short utterance in speaker recognition technology.
Yongfeng Li, Shuaishuai Chang, QingE Wu
doaj   +1 more source

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