TY - GEN
T1 - Performance analysis on recursive single-sideband amplitude modulation for parametric loudspeakers
AU - Ji, Peifeng
AU - Gan, Woon Seng
AU - Tan, Ee Leng
AU - Yang, Jun
PY - 2010
Y1 - 2010
N2 - A highly directional speech signal can be generated using parametric loudspeaker. The generation of highly directional sound beam is due to the nonlinear interaction of amplitude-modulated ultrasound waves in air. However, severe distortion is also generated during the reproduction of directional speech and several preprocessing techniques based on the Berktay's farfield model have been proposed by researchers to reduce the distortion. In this paper, we carried out a thorough investigation on the analytical performance of the recursive single-sideband amplitude modulation (RSSB-AM) technique, which has been found to perform well for directional speech reproduction. Several important characteristics of the performance of the RSSBAM are observed and optimal parameters of the RSSB-AM are also presented.
AB - A highly directional speech signal can be generated using parametric loudspeaker. The generation of highly directional sound beam is due to the nonlinear interaction of amplitude-modulated ultrasound waves in air. However, severe distortion is also generated during the reproduction of directional speech and several preprocessing techniques based on the Berktay's farfield model have been proposed by researchers to reduce the distortion. In this paper, we carried out a thorough investigation on the analytical performance of the recursive single-sideband amplitude modulation (RSSB-AM) technique, which has been found to perform well for directional speech reproduction. Several important characteristics of the performance of the RSSBAM are observed and optimal parameters of the RSSB-AM are also presented.
KW - Directional sound
KW - Distortion reduction
KW - Nonlinear system
KW - System approximation
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U2 - 10.1109/ICME.2010.5583814
DO - 10.1109/ICME.2010.5583814
M3 - Conference contribution
AN - SCOPUS:78349279160
SN - 9781424474912
T3 - 2010 IEEE International Conference on Multimedia and Expo, ICME 2010
SP - 748
EP - 753
BT - 2010 IEEE International Conference on Multimedia and Expo, ICME 2010
T2 - 2010 IEEE International Conference on Multimedia and Expo, ICME 2010
Y2 - 19 July 2010 through 23 July 2010
ER -