Improving Relative Transfer Function Estimates Using Second-Order Cone Programming

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985556%3A_____%2F15%3A00447198" target="_blank" >RIV/67985556:_____/15:00447198 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/978-3-319-22482-4_4" target="_blank" >http://dx.doi.org/10.1007/978-3-319-22482-4_4</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/978-3-319-22482-4_4" target="_blank" >10.1007/978-3-319-22482-4_4</a>

Result language
angličtina
Original language name
Improving Relative Transfer Function Estimates Using Second-Order Cone Programming
Original language description
This paper addresses the estimation of Relative Transfer Function (RTF) between microphones from noisy recordings. We utilize an incomplete initial measurement of the RTF, which is known for only several frequency bins. The measurement is completed by finding its sparsest representation in the time domain. We propose to perform this reconstruction by solving a Second-Order Cone Program (SOCP). Free parameters of this formulation represent distance of the completed RTF from the initial estimate. We select these parameters based on the theoretical performance of the initial estimate. In experiments with realworld data, this approach achieves a significant refinement of the RTF, especially in scenarios with low signal-to-noise ratios.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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