WorldCat Identities

Loizou, Philipos C.

Works: 7 works in 35 publications in 1 language and 504 library holdings
Roles: Author, Editor
Publication Timeline
Most widely held works by Philipos C Loizou
Speech enhancement : theory and practice by Philipos C Loizou( Book )

22 editions published between 2007 and 2017 in English and held by 294 WorldCat member libraries worldwide

This book covers traditional speech enhancement algorithms, such as spectral subtraction and Wiener filtering algorithms as well as state-of-the-art algorithms including minimum mean-squared error algorithms that incorporate signal-presence uncertainty and subspace algorithms that incorporate psychoacoustic models. The coverage includes objective and subjective measures used to evaluate speech quality and intelligibility. Divided into three parts, the book presents the digital-signal processing and speech signal fundamentals needed to understand speech enhancement algorithms, the various classes of speech enhancement algorithms proposed over the last two decades, and the methods and measures used to evaluate the performance of speech enhancement algorithms
Advances in modern blind signal separation algorithms : theory and applications by Kostas Kokkinakis( )

8 editions published in 2010 in English and held by 206 WorldCat member libraries worldwide

"With human-computer interactions and hands-free communications becoming overwhelmingly important in the new millennium, recent research efforts have been increasingly focusing on state-of-the-art multi-microphone signal processing solutions to improve speech intelligibility in adverse environments. One such prominent statistical signal processing technique is blind signal separation (BSS). BSS was first introduced in the early 1990s and quickly emerged as an area of intense research activity showing huge potential in numerous applications. BSS comprises the task of 'blindly' recovering a set of unknown signals, the so-called sources from their observed mixtures, based on very little to almost no prior knowledge about the source characteristics or the mixing structure. The goal of BSS is to process multi-sensory observations of an inaccessible set of signals in a manner that reveals their individual (and original) form, by exploiting the spatial and temporal diversity, readily accessible through a multi-microphone configuration. Proceeding blindly exhibits a number of advantages, since assumptions about the room configuration and the source-to-sensor geometry can be relaxed without affecting overall efficiency. This booklet investigates one of the most commercially attractive applications of BSS, which is the simultaneous recovery of signals inside a reverberant (naturally echoing) environment, using two (or more) microphones. In this paradigm, each microphone captures not only the direct contributions from each source, but also several reflected copies of the original signals at different propagation delays. These recordings are referred to as the convolutive mixtures of the original sources. The goal of this booklet in the lecture series is to provide insight on recent advances in algorithms, which are ideally suited for blind signal separation of convolutive speech mixtures. More importantly, specific emphasis is given in practical applications of the developed BSS algorithms associated with real-life scenarios. The developed algorithms are put in the context of modern DSP devices, such as hearing aids and cochlear implants, where design requirements dictate low power consumption and call for portability and compact size. Along these lines, this booklet focuses on modern BSS algorithms which address (1) the limited amount of processing power and (2) the small number of microphones available to the end-user."--[Source inconnue]
Robust speaker-independent recognition of a confusable vocabulary by Philipos C Loizou( )

1 edition published in 1995 in English and held by 1 WorldCat member library worldwide

Special issue : speech enhancement( )

1 edition published in 2007 in English and held by 1 WorldCat member library worldwide

Speech enhancement( Book )

1 edition published in 2007 in English and held by 1 WorldCat member library worldwide

Special issue speech enhancement( Book )

1 edition published in 2007 in English and held by 0 WorldCat member libraries worldwide

Audience Level
Audience Level
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Audience level: 0.62 (from 0.55 for Advances i ... to 1.00 for Special is ...)

WorldCat IdentitiesRelated Identities
Speech enhancement : theory and practice
Advances in modern blind signal separation algorithms : theory and applicationsSynthesis Lectures on Algorithms and Software in Engineering : Advances in Modern Blind Signal Separation Algorithms : Theory and Applications
Alternative Names
Loizou, P.

Loizou, P. C.

Loizou, Philip C. 1965-2012

Loizou, Philipos.

Philipos C. Loizou professeur à l'Université de Dallas

Philipos Loizou

English (35)