Excursion protection of loudspeaker

• Main Authors: TORRES JUAN FELIX, APPLETON NICHOLAS LUKE, ARNOTT BRIAN GEORGE, ROWLEY WILLIAM THOMAS, SUNG HO YOUNG, SMITHERS MICHAEL J
• Format: Patent
• Language: Chinese; English
• Published: 22.12.2020
• Subjects: BASIC ELECTRONIC CIRCUITRY; CONTROL OF AMPLIFICATION; DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PUBLIC ADDRESS SYSTEMS

The present invention relates to an apparatus and a method of excursion protection of a loudspeaker. The method includes attenuating selected bands in a transform domain, controlled by a feedback signal resulting from an excursion transfer function that has been modified according to the real-time operational characteristics of the loudspeaker. In this manner, the system reduces the amount of wideband attenuation needed to address the predicted excursion, resulting in a better listening experience. 本发明涉及一种扩音器的偏移保护的设备及方法。所述方法包含在变换域中使所选择带衰减，此受由已根据所述扩音器的实时操作特性而修改的偏移转移函数产生的反馈信号控制。以此方式，系统减少解决所预测偏移所需要的宽带衰减量，从而产生更好的收听体验。