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“Blind speech dereverberation using batch and sequential Monte Carlo methods”

IEEEXplore Access: in Proc. Intl. Symp. on Circuits and Systems (ISCAS), May 2008, pp. 3226–3229 Authors: C. Evers , J. R. Hopgood, and J. Bell Abstract: Reverberation and noise cause significant deterioration of audio quality and intelligibility to signals recorded in acoustic environments. Bayesian dereverberation infers knowledge about the system by exploiting the statistical properties...

IEEEXplore Access: in Proc. I...

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“Parametric modelling for single-channel blind dereverberation of speech from a moving speaker“

IEEEXplore Access: in IET Signal Processing, vol. 2, no. 2, pp. 59–74, June, 2008 Authors: C. Evers and J. R. Hopgood Abstract: Single-channel blind dereverberation for the enhancement of speech acquired in acoustic environments is essential in applications where microphone arrays prove impractical. In many scenarios, the source-sensor geometry is not varying rapidly, but in...

IEEEXplore Access: in IET Sig...

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“Block-based TVAR models for single-channel blind dereverberation of speech from a moving speaker”

IEEEXplore Access: in Proc. IEEE/SP Workshop on Statistical Signal Processing (SSP), August 2007, pp. 274–278 Authors: J. R. Hopgood and C. Evers Abstract: In reverberant environments, a moving speaker yields a dynamically changing source-sensor geometry giving rise to a spatially-varying acoustic impulse response (AIR) between the source and sensor. Consequently, this leads to a time-varying...

IEEEXplore Access: in Proc. I...

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“Bayesian single channel blind speech dereverberation using Monte Carlo methods”

Scitation Access: in The Journal of the Acoustical Society of America, vol. 123, no. 5, pp. 3586–3586, 2007 Authors: J. R. Hopgood, C. Evers , and J. Bell Abstract: Audio signals in confined spaces exhibit reverberation due to reflections off surrounding obstacles. Moreover, the signal is distorted by noise, usually modeled as an additive signal...

Scitation Access: in The Jour...

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“Towards single-channel blind dereverberation of speech from a moving speaker”

SemanticScholar Access: in IMA Intl. Conf. Math. Sig. Proc., Dec. 2006 Authors: J. R. Hopgood and C. Evers Abstract: An overview of some key issues involved in single-channel blind dereverberation is presented, beginning with a discussion on the nature of time-varying acoustic channels, the problem of long acoustic impulse responses and an introduction to model-based...

SemanticScholar Access: in IM...

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