This work describes a new method for estimating the orientation of a not omnidirectional sound source given a distributed microphone network. The technique requires that a set of microphone pairs be distributed over a room, and it exploits the coherence computed from each sensor pair in order to derive an estimation of the head orientation. A database consisting of an audio sequence reproduced by a loudspeaker with different orientations and different positions was collected in order to evaluate the algorithm behavior. Experiments conducted on that database show that our approach can provide an efficient estimation of the sound source orientation, with a RMS error of about 10 degrees. Satisfactory performance was confirmed by tests with real human speakers.

Estimation of talker`s head orientation based on Oriented Global Coherence Field

Brutti, Alessio;Omologo, Maurizio;Svaizer, Piergiorgio
2006

Abstract

This work describes a new method for estimating the orientation of a not omnidirectional sound source given a distributed microphone network. The technique requires that a set of microphone pairs be distributed over a room, and it exploits the coherence computed from each sensor pair in order to derive an estimation of the head orientation. A database consisting of an audio sequence reproduced by a loudspeaker with different orientations and different positions was collected in order to evaluate the algorithm behavior. Experiments conducted on that database show that our approach can provide an efficient estimation of the sound source orientation, with a RMS error of about 10 degrees. Satisfactory performance was confirmed by tests with real human speakers.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11582/3466
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
social impact