Results 41 to 50 of about 7,738 (278)
Sensors, 2023 Sidelobe suppression is a major challenge in wideband beamforming for acoustic research, especially in high noise and reverberation environments. In this paper, we propose a multi-objective NSGA-II wideband beamforming method based on a spherical ...
Zhenghong Liu +4 more
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Spherical microphone array acoustic rake receivers [PDF]
, 2015 Several signal independent acoustic rake receivers are proposed for speech dereverberation using spherical microphone arrays. The proposed rake designs take advantage of multipaths, by separately capturing and combining early reflections with the direct ...
Javed, HA, Moore, AH, Naylor, PA
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Online Monaural Speech Enhancement Using Delayed Subband LSTM [PDF]
, 2020 This paper proposes a delayed subband LSTM network for online monaural (single-channel) speech enhancement. The proposed method is developed in the short time Fourier transform (STFT) domain. Online processing requires frame-by-frame signal reception and
Horaud, Radu, Li, Xiaofei
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Archives of Acoustics, 2021 Microphone array with minimum variance (MVDR) beamformer is a commonly used method for ambient noise suppression. Unfortunately, the performance of the MVDR beamformer is poor in a real reverberant room due to multipath wave propagation. To overcome this
Zoran ŠARIĆ +4 more
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The Astrophysical Journal, 2023 We present the first results from a 100-day Swift, NICER, and ground-based X-ray–UV–optical reverberation mapping campaign of the Narrow-line Seyfert 1 Mrk 335, when it was in an unprecedented low X-ray flux state.
Erin Kara +39 more
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A channel-selection criterion for suppressing reverberation in cochlear implants [PDF]
The Journal of the Acoustical Society of America, 2011 Little is known about the extent to which reverberation affects speech intelligibility by cochlear implant (CI) listeners. Experiment 1 assessed CI users’ performance using Institute of Electrical and Electronics Engineers (IEEE) sentences corrupted with varying degrees of reverberation.
Kokkinakis, Kostas +2 more
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EURASIP Journal on Advances in Signal Processing, 2022 This paper proposes a novel approach for improving the speech of a single speaker in noisy reverberant environments. The proposed approach is based on using a beamformer with a large number of virtual microphones with the suggested arrangement on an open
Mohammad Ebrahim Sadeghi +2 more
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, 2014 Supermassive black holes in active galactic nuclei (AGNs) undergo a wide range of accretion rates, which lead to diversity of appearance. We consider the effects of anisotropic radiation from accretion disks on the broad-line region (BLR), from the ...
Du, P., Ho, L. C., Qiu, J., Wang, J. -M.
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The intermediate line region in active galactic nuclei [PDF]
, 2016 We show that the recently observed suppression of the gap between the broad line region (BLR) and the narrow line region (NLR) in some AGN can be fully explained by an increase of the gas density in the emitting region.
Adhikari, T. P. +4 more
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Channel and temporal-frequency attention UNet for monaural speech enhancement
EURASIP Journal on Audio, Speech, and Music Processing, 2023 The presence of noise and reverberation significantly impedes speech clarity and intelligibility. To mitigate these effects, numerous deep learning-based network models have been proposed for speech enhancement tasks aimed at improving speech quality. In
Shiyun Xu, Zehua Zhang, Mingjiang Wang
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