Sparse Acoustic Source Localization with Blind Calibration for Unknown Medium Characteristics

Cagdas Bilen (1) , Srđan Kitić (1) , Nancy Bertin (1) , Rémi Gribonval (1)

1 PANAMA - Parcimonie et Nouveaux Algorithmes pour le Signal et la Modélisation Audio

We consider the problem of audio source localization in a medium with unknown characteristics, particularly the speed of sound within the medium. We propose an algorithm to retrieve both the speed of sound and the localized signals under reasonable assumptions such as smoothness of medium structure. We present initial simulation results for stationary sinusoidal sources both for the case of uniform and non-uniform speed of sound through the medium to demonstrate the performance of the proposed algorithm.

Mots clés: source localization; cosparsity; calibration; wave equation

Domaines: Traitement des images [eess.IV]

Cagdas Bilen, Srđan Kitić, Nancy Bertin, Rémi Gribonval. Sparse Acoustic Source Localization with Blind Calibration for Unknown Medium Characteristics. iTwist - 2nd international - Traveling Workshop on Interactions between Sparse models and Technology, Aug 2014, Namur, Belgium. ⟨hal-01060320⟩