AES Berlin 2017
Tutorial T21
Tuesday, May 23, 09:00 — 10:30 (Salon 4+5 London)
T21 - System Design Using Adaptive Loudspeaker Control
Gregor Höhne (Presenter)
Progressing miniaturization and portability introduce new challenges for loudspeaker design. However, demands like higher efficiency and reduced weight can be achieved by combining digital signal processing and optimized transducer design. The tutorial gives an introduction into nonlinear adaptive loudspeaker control and how it can be used to equalize, stabilize, linearize, and actively protect transducers. This covers the physical background of nonlinear loudspeaker behavior and the resulting demands on a control algorithm with a strong focus on the practical implementation. The discussion includes resulting requirements for amplifier and transducer design, like power demands and advantages of dc-coupling, as well as techniques to evaluate the system performance.