Results 1 to 10 of about 70,241 (282)

Evaluating Similarity of Spectrogram-like Images of DC Motor Sounds by Pearson Correlation Coefficient

open access: yesElektronika ir Elektrotechnika, 2022
Three main approaches on how audio signals can be used as input to a deep learning model are: extracting hand-crafted features from audio signals, mapping audio signals into appropriate images such as spectrogram-like ones, and using directly raw audio ...
Dejan G. Ciric   +3 more
doaj   +1 more source

Deep learning bird song recognition based on MFF-ScSEnet

open access: yesEcological Indicators, 2023
Bird diversity plays an important role in ecological balance, and bird song identification is of great practical significance. The spectrum generated by feature extraction shows good performance on classification.
Shipeng Hu   +5 more
doaj   +1 more source

Noise and Speckle Reduction in Doppler Blood Flow Spectrograms Using an Adaptive Pulse-Coupled Neural Network

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
A novel method, called adaptive pulse coupled neural network (AD-PCNN) using a two-stage denoising strategy, is proposed to reduce noise and speckle in the spectrograms of Doppler blood flow signals.
Haiyan Li, Yufeng Zhang, Dan Xu
doaj   +2 more sources

Application of Spectral Analysis in Spinning Measurements

open access: yesAUTEX Research Journal, 2022
The presented analysis concerns the problem of irregularity in the mass distribution in linear textile products, its impact on the quality of flat products, and the methods of assessment.
Idzik Marek
doaj   +1 more source

Spectrogram Analysis of Genomes [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2004
We performed frequency-domain analysis in the genomes of various organisms using tricolor spectrograms, identifying several types of distinct visual patterns characterizing specific DNA regions. We relate patterns and their frequency characteristics to the sequence characteristics of the DNA.
Sussillo, David   +2 more
openaire   +3 more sources

Multibeam Doppler Sensor-Based Non-Contact Heartbeat Detection Using Beam Diversity

open access: yesIEEE Access, 2022
Heartbeat detection could enable various applications in the medical and health care fields. In particular, non-contact heartbeat detection can be acceptable for those who have difficulty wearing devices, such as burn patients and infants.
Tsukiko Kitagawa   +3 more
doaj   +1 more source

A Deep Neural Network Model for Speaker Identification

open access: yesApplied Sciences, 2021
Speaker identification is a classification task which aims to identify a subject from a given time-series sequential data. Since the speech signal is a continuous one-dimensional time series, most of the current research methods are based on ...
Feng Ye, Jun Yang
doaj   +1 more source

A Proposed Method for the Sound Recognition Process [PDF]

open access: yesEngineering and Technology Journal, 2018
One of the most important issues in the signal-processing world is the issue of sounds differentiations. It has many applications in identifying the sources of the sounds, and many researches nowadays serves in this field and all of them looking for the ...
Azad Kareem, Marwa Jassim, Mustafa Ali
doaj   +1 more source

Infant Cry Signal Diagnostic System Using Deep Learning and Fused Features

open access: yesDiagnostics, 2023
Early diagnosis of medical conditions in infants is crucial for ensuring timely and effective treatment. However, infants are unable to verbalize their symptoms, making it difficult for healthcare professionals to accurately diagnose their conditions ...
Yara Zayed, Ahmad Hasasneh, Chakib Tadj
doaj   +1 more source

Spectrogram Classification Using Dissimilarity Space [PDF]

open access: yesApplied Sciences, 2020
In this work, we combine a Siamese neural network and different clustering techniques to generate a dissimilarity space that is then used to train an SVM for automated animal audio classification. The animal audio datasets used are (i) birds and (ii) cat sounds, which are freely available.
Loris Nanni   +3 more
openaire   +4 more sources

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