Device for active simultation of an acoustical impedance

Details Device for active simultation of an acoustical impedance Device for active simultation of an acoustical impedance

1996-02-14

1998-09-22

Kuntz, Curtis

Electrical audio signal processing systems and devices

Loudspeaker feedback

381 89, 381159, H04R 300

Patent

active

058126864

ABSTRACT:
The device simulates actively an acoustical impedance. The simulation is achieved by sensing the air pressure on the surface of the membrane of an electrodynamic transducer and by moving the membrane with a speed and an acceleration which depend upon the pressure according to the desired impedance function. It can be used in loudspeaker systems with closed housings to eliminate standing waves inside housings.

REFERENCES:
patent: 5327504 (1994-07-01), Hobelsberger
patent: 5461676 (1995-10-01), Hobelsberger

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