Results 21 to 30 of about 777,330 (303)

Simulation Study on Detection and Localization of a Moving Target Under Reverberation in Deep Water

open access: yesJournal of Marine Science and Engineering
Deep-water reverberation caused by multiple reflections from the seafloor and sea surface can affect the performance of active sonars. To detect a moving target under reverberation conditions, a reverberation suppression method using multipath Doppler ...
Jincong Dun   +3 more
doaj   +2 more sources

Radon–full-waveform inversion for suppressing scalp reverberation and skull-induced aberration in transcranial photoacoustic computed tomography [PDF]

open access: yesPhotoacoustics
Photoacoustic computed tomography is promising for noninvasive imaging of cerebral function but is limited by skull-induced acoustic aberrations. Moreover, strong superficial signals from the scalp often produce reverberations within the skull, which ...
Jiawen Zhang   +8 more
doaj   +2 more sources

A Robust Bilinear Framework for Real-Time Speech Separation and Dereverberation in Wearable Augmented Reality [PDF]

open access: yesSensors
This paper presents a bilinear framework for real-time speech source separation and dereverberation tailored to wearable augmented reality devices operating in dynamic acoustic environments.
Alon Nemirovsky   +2 more
doaj   +2 more sources

Speech reverberation suppression for time-varying environments using weighted prediction error method with time-varying autoregressive model [PDF]

open access: yesSpeech Communication, 2019
In this paper, a novel approach for the task of speech reverberation suppression in non-stationary (changing) acoustic environments is proposed. The suggested approach is based on the popular weighted prediction error (WPE) method, yet, instead of ...
Mahdi Parchami   +2 more
semanticscholar   +2 more sources

Binaural speech intelligibility for combinations of noise, reverberation, and hearing-aid signal processing. [PDF]

open access: yesPLoS ONE
Binaural speech intelligibility in rooms is a complex process that is affected by many factors including room acoustics, hearing loss, and hearing aid (HA) signal processing. Intelligibility is evaluated in this paper for a simulated room combined with a
James M Kates   +4 more
doaj   +2 more sources

Optimized gain functions in ideal time-frequency masks and their application to dereverberation for cochlear implants [PDF]

open access: yesJASA Express Letters, 2021
The present study investigated three different reverberation suppression rules based on the parametric ideal ratio mask, which is a generalization of the classical Wiener filter with additional parameters controlling the threshold and slope.
Kostas Kokkinakis, Joshua S. Stohl
doaj   +1 more source

Late reverberation suppression using U-nets

open access: yesCoRR, 2021
In real-world settings, speech signals are almost always affected by reverberation produced by the working environment; these corrupted signals need to be \emph{dereverberated} prior to performing, e.g., speech recognition, speech-to-text conversion, compression, or general audio enhancement.
Diego León, Felipe A. Tobar
openaire   +2 more sources

A signal enhancement method based on the reverberation statistical information

open access: yesEURASIP Journal on Advances in Signal Processing, 2022
This paper proposes a reverberation suppression algorithm utilizing fractional lower-order moments based on statistical properties. As fractional lower-order moments can only be applied on symmetric α-stable random variables, the energy redistribution ...
Ge Yu, Jiangjiang Sun, Xiukun Li
doaj   +1 more source

Suppression of reverberation artifact by subtraction imaging [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1990
Reverberations in ultrasound pulse-echo signals are the result of parallel specular reflectors that are perpendicular to the incident sound beam. The multiple reflections within the space between the reflectors cause a decaying pulse train of echoes to be superimposed on the returned echoes due to other structures. In a medical ultrasound B-scan, these
Terry A. Kling, K. Kirk Shung
openaire   +1 more source

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