Results 41 to 50 of about 926 (186)

Signal‐Based Performance Evaluation of Dereverberation Algorithms

open access: yesJournal of Electrical and Computer Engineering, Volume 2010, Issue 1, 2010., 2010
We address the measurement of reverberation in terms of the (DRR) in the context of the assessment of dereverberation algorithms for which we wish to quantify the level of reverberation before and after processing. The DRR is normally calculated from the impulse response of the reverberating system. However, several important dereverberation algorithms
Patrick A. Naylor   +3 more
wiley   +1 more source

Inverse Filtering and Principal Component Analysis Techniques for Speech Dereverberation

open access: yesAdvances in Electrical and Electronic Engineering, 2016
In this work, we present a single channel approach for early and late reverberation suppression. This approach can be decomposed into two stages. The first stage employs the inverse filter to augment the signal-to-reverberant energy ratio.
Mohamed Anouar Ben Messaoud   +1 more
doaj   +1 more source

Inverse Filtering for Speech Dereverberation Less Sensitive to Noise and Room Transfer Function Fluctuations

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
Inverse filtering of room transfer functions (RTFs) is considered an attractive approach for speech dereverberation given that the time invariance assumption of the used RTFs holds.
Masato Miyoshi   +2 more
doaj   +2 more sources

An online algorithm for echo cancellation, dereverberation and noise reduction based on a Kalman-EM Method

open access: yesEURASIP Journal on Audio, Speech, and Music Processing, 2021
Many modern smart devices are equipped with a microphone array and a loudspeaker (or are able to connect to one). Acoustic echo cancellation algorithms, specifically their multi-microphone variants, are essential components in such devices.
Nili Cohen   +3 more
doaj   +1 more source

Reverberant speech database for training speech dereverberation algorithms and TTS models

open access: yes, 2016
Reverberant speech database. The database was designed to train and test speech dereverberation methods that operate at 48kHz. Clean speech was made reverberant by convolving it with a room impulse response. The room impulse responses used to create this
Valentini-Botinhao, Cassia
core   +2 more sources

A two-stage beamforming approach for noise reduction and dereverberation

open access: yes, 2022
S.945-958In general, the signal-to-noise ratio as well as the signal-to- reverberation ratio of speech received by a microphone decrease when the distance between the talker and microphone increases.
Habets, E.A.P., Benesty, J.
core   +1 more source

Reverberant environment embedding using dereverberation autoencoder

open access: yesElectronics Letters, Volume 61, Issue 1, January/December 2025.
We design a neural network architecture for dereverberation, combining linear prediction and dereverberation autoencoder. To improve reverberant speech recognition performance with low computational complexity, we propose a method to extract environmental embedding named DA‐embedding instead of applying dereverberation to the input of an acoustic model.
Sunchan Park, Hyung Soon Kim
wiley   +1 more source

Blind dereverberation of speech from moving and stationary speakers using sequential Monte Carlo methods [PDF]

open access: yes, 2010
Speech signals radiated in confined spaces are subject to reverberation due to reflections of surrounding walls and obstacles. Reverberation leads to severe degradation of speech intelligibility and can be prohibitive for applications where speech is ...
Evers, Christine
core  

Control Filter Estimation for Multichannel Active Noise Control Using Kronecker Product Decomposition

open access: yesIET Signal Processing, Volume 2025, Issue 1, 2025.
Active noise control (ANC) algorithms have been developed within the adaptive algorithm framework. However, multichannel ANC systems, which include numerous reference sensors, control speakers, and error microphones, require a very long control filter converging time for control filter estimation.
Hakjun Lee   +2 more
wiley   +1 more source

Speech dereverberation performance of a polynomial-EVD subspace approach [PDF]

open access: yes, 2020
The degradation of speech arising from additive background noise and reverberation affects the performance of important speech applications such as telecommunications, hearing aids, voice-controlled systems and robot audition.
Evers, Christine   +7 more
core   +1 more source

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