Title :
Superdirective beamforming using microphone array and single reflector
Author :
Niwa, Kenta ; Sakauchi, Sumitaka ; Furuya, Ken´ichi ; Okamoto, Manabu ; Haneda, Yoichi
Author_Institution :
NTT Cyber Space Labs., NTT Corp., Musashino, Japan
Abstract :
A method to generate superdirective beamforming using a microphone array and planar reflector is proposed. In this method, the beam width is reduced by positioning a reflector near the array and fixing the position of each microphone. Experimental results confirmed that the beam width was narrowed using the proposed method to half that with the conventional method.
Keywords :
acoustic signal processing; array signal processing; microphone arrays; microphone array; single planar reflector; superdirective beamforming; Acoustic beams; Acoustics; Array signal processing; Arrays; Microphones; Noise; Transfer functions;
Conference_Titel :
Consumer Electronics (ICCE), 2012 IEEE International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4577-0230-3
DOI :
10.1109/ICCE.2012.6161717
