ACOUSTIC LOCALIZATION USING REVERBERATIONWITH VIRTUAL MICROPHONES

This paper proposes the use of reverberant acoustic infor-mation with virtual microphones and the time difference of arrival (TDOA) concept to model the contribution of reflected signals. Performance of first order and closest wall reflection models are compared against direct path localization. Real data recordings from a stationary source are used to evaluate the performance. Spatial distributions of the source position generated with the different approaches are analyzed within a two dimensional grid. Results indicate an increase in the speaker localization accuracy using virtual setups in conjunc-tion with the traditional direct path localization. Index Terms — time difference of arrival, acoustic local-ization, image method, virtual arrays, reverberation 1