Volterra Filter reduced the second order nonlinear distortion of horn loudspeaker in real time. The calculation is done in frequency domain, therefore the processor consists of only two DSPs. The results show that the reduction of the harmonic distortion and the intermodulation distortion is from 5 to 20 dB. The effect is also confirmed by listening test of music source.

Authors: Katayama, Taro; Serikawa, Mitsuhiko
Affiliation: Matsushita Electric Industrial Co., Ltd., Kadoma-shi, Osaka, Japan
AES Convention: 103 (September 1997) Paper Number: 4525
Publication Date: September 1, 1997
Subject: Loudspeakers

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