Results 31 to 40 of about 73,479 (256)

The Effects of Noise and Reverberation Time on Auditory Sustained Attention

open access: yesApplied Sciences, 2023
The indoor acoustic environment is very important for auditory learning, and the completion of various auditory learning tasks cannot be separated from auditory sustained attention.
Lei Li, Yali Liu, Ling Li
doaj   +1 more source

Analysis of the Effects and Causes of Driver Horn Use on the Acoustic Environment at Urban Intersections in Taiwan

open access: yesApplied Sciences, 2022
Car horns were originally installed in vehicles for safety. However, many urban areas in several countries face noise problems related to the use of car and motorbike horns. To propose measures to suppress the use of horns, relationships between horn use
Masayuki Takada   +7 more
doaj   +1 more source

Interaction between Acoustic Environment and Landscape. The Effect of Acoustic Environment on Perceived Landscape and the Effect of Landscape on Perceived Acoustic Environment.

open access: yesThe Annals of physiological anthropology, 1992
The effect of acoustic environment on the impression of the landscape and the effect of the landscape on the impression of the acoustic environment were investigated by a multivariate technique using a semantic differential method. The resulting five dimensions were interpreted as "Calmness", "Activity", "Naturalness", "Uniqueness", and "Volume ...
IWAMIYA, Shin-ichiro   +2 more
openaire   +3 more sources

A multi-task neural network for source localization in shallow-water environment with depth classification [PDF]

open access: yesJASA Express Letters
Limited high-quality training data can cause overfitting and weak generalization in deep-learning-based source localization, leading to degraded performance in realistic environments. In this study, a multi-task neural network with a depth-classification
Jing Guo, Juan Zeng
doaj   +1 more source

Source localization in shallow ocean using a deep learning approach with range-dependent sound speed profile modeling [PDF]

open access: yesJASA Express Letters
Model-based deep learning approaches provide an alternative scheme to address the problem of the shortage of training data. However, performance degradation caused by sound speed profile (SSP) mismatch remains a critical challenge, particularly in ...
Jing Guo, Juan Zeng
doaj   +1 more source

An extended Levinson-Durbin algorithm and its application in mixed excitation linear prediction

open access: yesHeliyon, 2018
Ten order all-pole model is used in the 2400 bit/second mixed excitation linear prediction to describe human vocal tract. Traditional Levinson-Durbin algorithm is one of the methods to solve the Yule-Walker equations conducted by the ten order linear ...
Dong Xiao   +4 more
doaj   +1 more source

Horizontal Detection Range Estimation of Deep-Sea Acoustic Shadow Area Based on Vertical Phased Emission Array

open access: yesJournal of Marine Science and Engineering
To scan the horizontal range of the deep-sea shadow zone with high accuracy and efficiency, enabling active target detection, a horizontal detection range estimation method based on phased sound focusing technology is presented.
Naibin Chen   +5 more
doaj   +1 more source

Numerical study on jet noise suppression with water injection during one-nozzle launch vehicle lift-off

open access: yesEngineering Applications of Computational Fluid Mechanics, 2022
The launch vehicle will experience extreme acoustic environment at lift-off, which will cause the invalidation and destruction of the aerospace equipment, and reducing noise is of great significance for improving launch safety.
Chenglong Xing, Guigao Le, Hanyu Deng
doaj   +1 more source

Vertical Distribution Characteristics of Sound Field Spectrum Splitting for Moving Sound Source in SOFAR Channel

open access: yesJournal of Marine Science and Engineering
The frequency shift of multipath sound rays induced by the motion of a sound source in an ocean waveguide environment is a crucial factor affecting the detection capabilities of both active and passive sonar systems, as well as the quality of underwater ...
Zuoxiang Zhang   +3 more
doaj   +1 more source

Application research on vector coherent frequency‐domain batch adaptive line enhancement in deep water

open access: yesIET Radar, Sonar & Navigation
The low frequency line spectrum noise radiated by ships has strong stability and is difficult to eliminate, which is the key information required for passive signal detection.
He Li   +4 more
doaj   +1 more source

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