Title :
Active power minimization of a sound source in a reverberant closed space
Author :
Tohyama, Mikio ; Suzuki, Akira ; Sugiyama, Kiyoshi
Author_Institution :
NTT Human Interface Lab., Tokyo, Japan
fDate :
1/1/1991 12:00:00 AM
Abstract :
Sound power output from a source can be decreased in a closed space by using secondary sources. The minimum power response from sound sources (both primary and secondary sources) is analyzed based on modal theory. The power reduction is observed experimentally for a pure tone source in a large reverberation room. The corner method for sensor location is also discussed
Keywords :
acoustic signal processing; reverberation; active power minimisation; corner method; large reverberation room; minimum power response; modal theory; pure tone source; reverberant closed space; sensor location; sound source; Acoustic sensors; Active filters; Algorithm design and analysis; Covariance matrix; Estimation; Linear programming; Multiple signal classification; Sensor arrays; Signal processing algorithms; Target tracking;
Journal_Title :
Signal Processing, IEEE Transactions on
