Results 11 to 20 of about 1,082 (250)

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

Cascaded-Filter-Based Reverberation Suppression Method of Short-Pulse Continuous Wave for Active Sonar

open access: yesRemote Sensing
Reverberation is the main background interference in active sonar and seriously interferes with the extraction of the target echo. Active sonar systems can use short-pulse continuous wave (CW) signals to reduce the reverberation intensity.
Yonglin Cui   +5 more
doaj   +3 more sources

Single channel reverberation suppression based on sparse linear prediction [PDF]

open access: yes2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2014
Reverberation degrades speech intelligibility in telecommunications as well as it increases the word error rate in automatic speech recognition tasks. Several dereverberation methods have been proposed recently in order to counter these effects. In the single microphone case, the dereverberation problem is underdetermined and reverberation suppression ...
Gael Richard
exaly   +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

Waveform Design Using Coprime Frequency-Modulated Pulse Trains for Reverberation Suppression of Active Sonar

open access: yesJournal of Marine Science and Engineering, 2022
Over the last two decades, low-frequency active sonar has become an attractive tool for underwater target detection. The reverberation to signal ratio (RSR) of transmitted waveforms is an important factor affecting the detection capability of low ...
Xiaobin Cui   +5 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

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

Underwater Reverberation Suppression via Attention and Cepstrum Analysis-Guided Network

open access: yesJournal of Marine Science and Engineering, 2023
Active sonar systems are one of the most commonly used acoustic devices for underwater equipment. They use observed signals, which mainly include target echo signals and reverberation, to detect, track, and locate underwater targets. Reverberation is the
Yukun Hao   +6 more
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

Application of a Randomized Algorithm for Extracting a Shallow Low-Rank Structure in Low-Frequency Reverberation

open access: yesRemote Sensing, 2023
The detection performance of active sonar is often hindered by the presence of seabed reverberation in shallow water. Separating the reverberations from the target echo and noise in the received signal is a crucial challenge in the field of underwater ...
Jie Pang, Bo Gao
doaj   +1 more source

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