Title :
Speech activity detection of moving speaker using microphone arrays
Author :
Potamitis, I. ; Fishler, E.
Author_Institution :
Dept. of Electr. & Comput. Eng., Patras Univ., Greece
Abstract :
A novel technique for voice activity detection of a moving speaker in adverse conditions using an array of microphones. The proposed approach is based on the generalised likelihood ratio test applied to far-field, wideband moving sources (W-GLRT). It is shown that under certain distributional assumptions the W-GLRT provides a statistical framework for the evaluation of direction of arrival (DOA) measurements against spurious DOAs and which leads to statistical speech activity detection.
Keywords :
acoustic transducer arrays; direction-of-arrival estimation; microphones; speech processing; DOA measurements; adverse conditions; direction of arrival measurements; far-field moving sources; generalised likelihood ratio test; microphone arrays; moving speaker; speech activity detection; statistical framework; voice activity detection; wideband moving sources;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030726
