Ninth International Conference on Spoken Language Processing

Pittsburgh, PA, USA
September 17-21, 2006

Speaker Localization Based on Oriented Global Coherence Field

Alessio Brutti, Maurizio Omologo, Piergiorgio Svaizer

ITC-irst, Italy

This paper proposes a new speaker localization method that is based on a preliminary estimation of the head orientation. The basic information on which the estimation is accomplished is called Oriented Global Coherence Field (OGCF).

The new algorithm is shown to be significantly more robust than the traditional ones so far explored. Its robustness is also due to an effective speech activity detection, implicitly performed by a thresholding technique applied to OGCF information. To show the performance of the proposed system, experiments were conducted on the NIST RT-05 Spring Evaluation source localization task, which is based on real recordings of lectures in noisy and reverberant environments.

Full Paper

Bibliographic reference.  Brutti, Alessio / Omologo, Maurizio / Svaizer, Piergiorgio (2006): "Speaker localization based on oriented global coherence field", In INTERSPEECH-2006, paper 1467-Thu2FoP.8.