Technische Universitat Graz and Forschungsholding Tu Graz Gmbh

Technische Universitat Graz

Forschungsholding Tu Graz Gmbh

Michael Wohlmayr

Gernot Kubin

Michael Stark

Franz Pernkopf

Marián Képesi

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 (&#x3c4;) 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 (&#x3c6;), 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.

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Graz, Austria

Michael Wohlmayr