The Hough Transform for Binaural Source Localization

Sylvain Marchand (1) , Anne Vialard (1)

1 LaBRI - Laboratoire Bordelais de Recherche en Informatique

We introduce a new technique for the blind localization of several sound sources from two binaural signals. First, the binaural signals are organized as two-dimensional data where each sound source appears as a line. Second, the Hough transform is used to recognize these lines. The slopes of the lines give the mixing coefficients and directions of arrival (azimuths). Two variants of our technique are proposed, based on only one of the interaural level or time differences, respectively. Although a rapid comparison to a well-known localization method as well as promising results are shown, they are clearly not exhaustive and this paper should rather be regarded as a feasibility demonstration of the new technique.

Domaines: Son [cs.SD]

Sylvain Marchand, Anne Vialard. The Hough Transform for Binaural Source Localization. Digital Audio Effects (DAFx09) Conference, Sep 2009, Como, Italy. pp.252--259. ⟨hal-00406275⟩