Sound source localization in reverberant rooms using time-reversal processing

In this project, we aim to apply the Time-Reversal (TR) principle to locate sound sources in a reverberant environment using a small hemispherical microphone array. Previously, sound source localization has been demonstrated using TR and a hemispherical array where all sources were located inside the hemisphere – however, the feasibility of using a smaller hemispherical array in a situation where sources are located outside the hemisphere (for instance, in an industrial workroom) is still an open question. In addition to verifying that the aforementioned concept is feasible in a reverberation chamber, we will apply the concept to real rooms. In both cases, the TR process will be performed in Matlab, first using simulated data, and then using physical experimental data acquired by a pre-existing hemispherical microphone array developed at UBC.

Faculty Supervisor:

Murray Hodgson

Student:

Partner:

Université de Poitiers

Discipline:

Engineering

Sector:

Education

University:

The University of British Columbia

Program: