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 [BibTeX] [Marc21]
Novel GCC-PHAT Model in Diffuse Sound Field for Microphone Array Pairwise Distance Based Calibration
Type of publication: Conference paper
Citation: Velasco_ICASSP15_2015
Publication status: Published
Booktitle: IEEE 40th International Conference on Acoustics, Speech and Signal Processing (ICASSP)
Year: 2015
Pages: 2669-2673
Abstract: We propose a novel formulation of the generalized cross correlation with phase transform (GCC-PHAT) for a pair of microphones in diffuse sound field. This formulation elucidates the links between the microphone distances and the GCC-PHAT output. Hence, it leads to a new model that enables estimation of the pairwise distances by optimizing over the distances best matching the GCC-PHAT observations. Furthermore, the relation of this model to the coherence function is elaborated along with the dependency on the signal bandwidth. The experiments conducted on real data recordings demonstrate the theories and support the effectiveness of the proposed method.
Keywords: Diffuse sound field, Generalized cross correlation, Microphone array calibration, Pairwise distance estimation, Phase transform
Projects Idiap
PHASER 200021-153507
Authors Velasco, Jose
Taghizadeh, Mohammad J.
Asaei, Afsaneh
Bourlard, Hervé
Martín-Arguedas, Carlos J.
Macias-Guarasa, Javier
Pizarro, Daniel
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  • Velasco_ICASSP15_2015.pdf