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132
Voted
ICASSP
2009
IEEE
15 years 9 months ago
Sparse decomposition of mixed audio signals by basis pursuit with autoregressive models
We develop a framework to detect when certain sounds are present in a mixed audio signal. We focus on the regime where out of a large number of possible sounds, a small but unknow...
Youngmin Cho, Lawrence K. Saul
108
Voted
ICASSP
2011
IEEE
14 years 6 months ago
Reproduction of independent narrowband soundfields in a multizone surround system and its extension to speech signal sources
While higher order ambisonic approaches can be used to generate multiple zone soundfields, this paper adopts a Least Squares matching approach which provides a more flexible formu...
Nasim Radmanesh, Ian S. Burnett
118
Voted
ICASSP
2008
IEEE
15 years 9 months ago
Second-order near-field localization with automatic paring operation
Most exiting array signal processing techniques for bearing estimation are strongly relied on the far-field assumption. When the sources are located close to the array, these tec...
Rémy Boyer, José Picheral
111
Voted
ICASSP
2008
IEEE
15 years 9 months ago
Contextually adaptive signal representation using conditional principal component analysis
The conventional method of generating a basis that is optimally adapted (in MSE) for representation of an ensemble of signals is Principal Component Analysis (PCA). A more ambitio...
Rosa M. Figueras i Ventura, Umesh Rajashekar, Zhou...
121
Voted
ICASSP
2009
IEEE
15 years 9 months ago
Improved subspace DoA estimation methods with large arrays: The deterministic signals case
This paper is devoted to the subspace DoA estimation using a large antennas array when the number of available snapshots is of the same order of magnitude than the number of senso...
Pascal Vallet, Philippe Loubaton, Xavier Mestre