Results 81 to 90 of about 3,790,103 (166)

Leak Detection in Smart Water Networks Using Tailored Acoustic Features Under Complex Urban Environments

open access: yesWater Resources Research, Volume 62, Issue 7, July 2026.
Abstract Distributed wireless acoustic sensors, such as accelerometers, in smart water networks are increasingly used to detect leaks before they escalate into pipe breaks. In addition to leak‐induced signals, these sensors also capture acoustic noise generated by pumping and valve operations, pedestrians, traffic, and other environmental sources ...
Wei Zeng   +5 more
wiley   +1 more source

A dual-stream CNN-based ConvMixer for durian ripeness classification using magnitude and phase features from knocking sounds

open access: yesResults in Engineering
Knocking-sound analysis provides a non-destructive method for assessing durian ripeness; however, most convolutional neural network methods mainly emphasize magnitude information while disregarding phase information that reflects the overall signal ...
Khomdet Phapatanaburi   +7 more
doaj   +1 more source

Automated classification of vowel category and speaker type in the high-frequency spectrum

open access: yesAudiology Research, 2016
The high-frequency region of vowel signals (above the third formant or F3) has received little research attention. Recent evidence, however, has documented the perceptual utility of high-frequency information in the speech signal above the traditional ...
Jeremy J. Donai   +2 more
doaj   +1 more source

On Compensating the Mel-Frequency Cepstral Coefficients

open access: yes, 2008
This paper describes a novel noise-robust automatic speech recognition (ASR) front-end that employs a combination of Mel-filterbank output compensation and cumulative distribution mapping of cepstral coefficients with truncated Gaussian distribution ...
For Noisy Speech, Eric H. C. Choi
core  

Dysphonia Detection based on modulation spectral features and cepstral coefficients [PDF]

open access: yes, 2010
In this paper, we combine modulation spectral features with mel-frequency cepstral coefficients for automatic detection of dysphonia. For classification purposes, dimensions of the original modulation spectra are reduced using higher order singular value
Arias-Londoño, Julián David   +3 more
core  

Comparison of cepstral coefficients to other voice evaluation parameters in patients with occupational dysphonia

open access: yesMedycyna Pracy, 2013
Background: Special consideration has recently been given to cepstral analysis with mel-frequency cepstral coefficients (MFCCs). The aim of this study was to assess the applicability of MFCCs in acoustic analysis for diagnosing occupational dysphonia in ...
Ewa Niebudek-Bogusz   +3 more
doaj   +1 more source

Identifikasi Suara Pengontrol Lampu Menggunakan Mel-Frequency Cepstral Coefficients dan Hidden Markov Model

open access: yes, 2017
Identification of voice signals can be used to command a computer system. Identification can be made of voice owner and spoken word. Identification of voice owner is used for security, while spoken word identification is often used to execute command on ...
Munggaran, Angga Kersana   +2 more
core  

Multilingual Speaker Identification by Combining Evidence from LPR and Multitaper MFCC

open access: yesJournal of Intelligent Systems, 2013
In this work, the significance of combining the evidence from multitaper mel-frequency cepstral coefficients (MFCC), linear prediction residual (LPR), and linear prediction residual phase (LPRP) features for multilingual speaker identification with the ...
Nagaraja B.G., Jayanna H.S.
doaj   +1 more source

Mel-frequency cepstral coefficients of voice source waveforms for classification of phonation types in speech

open access: yes, 2019
Voice source characteristics in different phonation types vary due to the tension of laryngeal muscles along with the respiratory effort. This study investigates the use of mel-frequency cepstral coefficients (MFCCs) derived from voice source waveforms ...
Kadiri, Sudarsana Reddy   +3 more
core   +1 more source

MEL-FREQUENCY CEPSTRAL COEFFICIENTS (MFCC) FEATURE FOR PUMP ANOMALY DETECTION IN NOISY ENVIRONMENTS

open access: yesRekayasa Mesin
The continuity of a production process is supported by the availability of good assets. One of the efforts to support asset availability is through asset maintenance. One of the important assets in the industry is the pump. To detect anomalous conditions
Anindita Adikaputri Vinaya   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy