The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 31, 2012
Filed:
Jun. 01, 2007
Marián Képesi, Dunajská Streda, SK;
Michael Wohlmayr, Graz, AT;
Gernot Kubin, Graz, AT;
Abstract
The invention relates to a method for localizing and tracking acoustic sources () in a multi-source environment, comprising the steps of recording audio-signals () of at least one acoustic source () with at least two recording means (), creating a two- or multi-channel recording signal, partitioning said recording signal into frames of predefined length (N), calculating for each frame a cross-correlation function as a function of discrete time-lag values (τ) for channel pairs () of the recording signal, evaluating the cross-correlation function by calculating a sampling function depending on a pitch parameter (f) and at least one spatial parameter (φ), the sampling function assigning a value to every point of a multidimensional space being spanned by the pitch-parameter and the spatial parameters, and identifying peaks in said multidimensional space with respective acoustic sources in the multi-source environment.