Results 11 to 20 of about 8,278 (252)

A Space-Time Adaptive Processing Method Based on Sparse Reconstruction of Reverberation Interference

open access: yesXibei Gongye Daxue Xuebao, 2020
Aiming at the problem of how to obtain reverberation samples and estimate their covariance matrix in the space-time adaptive processing(STAP) of sonar system, a new space-time adaptive processing method is proposed based on sparse reconstruction of ...

doaj   +1 more source

Simulation of sonar reverberation signal considering the ocean multipath and Doppler effect

open access: yesFrontiers in Marine Science, 2023
In order to achieve accurate modeling and simulation of sonar reverberation signals, four types of multi-path underwater reverberation models are established considering Doppler effect under the condition of separating the sound source and hydrophone ...
Sen Zhang, Jian Wu, Jian Wu, Tianqi Yin
doaj   +1 more source

An overview of methods for generating, augmenting and evaluating room impulse response using artificial neural networks

open access: yesMokslas: Lietuvos Ateitis, 2021
Methods based on artificial neural networks (ANN) are widely used in various audio signal processing tasks. This provides opportunities to optimize processes and save resources required for calculations.
Mantas Tamulionis
doaj   +1 more source

Interaural Coherence Estimation for Speech Processing in Reverberant Environment

open access: yesApplied Sciences, 2020
Interaural coherence is used to quantify the effects of reverberation on speech, and previous studies applied the conventional method using all previous time data in the form of an infinite impulse response filter to estimate interaural coherence.
Seong-Hu Kim, Yong-Hwa Park
doaj   +1 more source

Effects of reverberation on speech intelligibility in noise for hearing-impaired listeners

open access: yesRoyal Society Open Science, 2022
Reverberation can have a strong detrimental effect on speech intelligibility in noise. Two main monaural effects were studied here: the temporal smearing of the target speech, which makes the speech less understandable, and the temporal smearing of the ...
Raphael Cueille   +2 more
doaj   +1 more source

Reverberation Suppression Method for Active Sonar Systems Using Non-Negative Matrix Factorization With Pre-Trained Frequency Basis Matrix

open access: yesIEEE Access, 2021
In active sonar systems, detection always suffers from reverberation interference from multiple scatterers in oceanic environments; therefore, numerous studies have been conducted on reverberation suppression.
Geunhwan Kim, Seokjin Lee
doaj   +1 more source

Perceptual Similarities between Artificial Reverberation Algorithms and Real Reverberation

open access: yesApplied Sciences, 2023
This paper presents a study evaluating the perceptual similarity between artificial reverberation algorithms and acoustic measurements. An online headphone-based listening test was conducted and data were collected from 20 expert assessors.
Huan Mi, Gavin Kearney, Helena Daffern
doaj   +1 more source

Two-Microphone Dereverberation for Automatic Speech Recognition of Polish

open access: yesArchives of Acoustics, 2014
Reverberation is a common problem for many speech technologies, such as automatic speech recognition (ASR) systems. This paper investigates the novel combination of precedence, binaural and statistical independence cues for enhancing reverberant speech ...
Mikolaj KUNDEGORSKI   +2 more
doaj   +1 more source

Research on reverberation characteristics analysis and suppression methods for active continuous detection [PDF]

open access: yesMATEC Web of Conferences, 2019
Compared with the traditional active detection with monopulse periodic emission mode, active continuous detection has the advantages of large emission duty ratio and continuous acquisition of process information.
Chen Tuo, Ma Qiming, Zhou Zheyuan, Lu He
doaj   +1 more source

Determination of the Reverberation Time Using the Measurement of Sound Decay Curves

open access: yesApplied Sciences, 2023
In the measurements of reverberation time, measurement methods of different accuracy are used depending on the room. For ordinary rooms, the measurements are made using the interrupted noise method, which consists of determining the decay curve after ...
Artur Nowoświat
doaj   +1 more source

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