Fast reconstruction of sparse relative impulse responses via second-order cone programming

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F17%3APU124131" target="_blank" >RIV/00216305:26220/17:PU124131 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1109/WASPAA.2017.8170056" target="_blank" >http://dx.doi.org/10.1109/WASPAA.2017.8170056</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/WASPAA.2017.8170056" target="_blank" >10.1109/WASPAA.2017.8170056</a>

Result language
angličtina
Original language name
Fast reconstruction of sparse relative impulse responses via second-order cone programming
Original language description
The paper addresses the estimation of the relative transfer function (RTF) using incomplete information. For example, an RTF estimate might be recognized as too inaccurate in a number of frequency bins. When these values are dropped, an incomplete RTF is obtained. The goal is then to reconstruct a complete RTF estimate, based on (1) the remaining values, and (2) the sparsity of the relative impulse response, which is the time-domain counterpart of the RTF. We propose two fast algorithms for the RTF reconstruction that solve a second-order cone program (SOCP), and show their advantages over the LASSO formulation previously proposed in the literature. Simulations with speech signals show that in terms of speed and accuracy, the proposed algorithms are comparable with the LASSO solution and considerably faster compared to the generic ECOS solver. The new algorithms are, moreover, easier to control through their parameters, which brings their improved stability when the number of reliable frequency bins is very low (less than 10%).
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the 2017 Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA)
ISBN
978-1-5386-1631-4
ISSN
—
e-ISSN
—
Number of pages
5
Pages from-to
364-368
Publisher name
Institute of Electrical and Electronics Engineers Inc.
Place of publication
Neuveden
Event location
New Paltz
Event date
Oct 15, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000426939000074

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