AES New York 2015
Product Development Track Event PD8

Saturday, October 31, 10:45 am — 12:15 pm (Room 1A13)


Product Development: PD8 - Adaptive Loudspeaker Control—An Application Tutorial

Gregor Hoehne, Klippel GmbH - Dresden, Germany

Adaptive control provides new potential for speaker design. Digital preprocessing of the electrical input signal can used to equalize, linearize, stabilize, and actively protect the transducer against overload. The control technology allows the exploitation of all hardware resources, which makes the transducer smaller, lighter, and more cost effective. This workshop gives an insight into adaptive loudspeaker control by presenting the Klippel Control Technology and demonstrates how it can be utilized by transducer and system engineers. An introduction into the theory of adaptive nonlinear control is given, but the focus lies on how the technique can be integrated into a system design. This comprises the selection of suitable transducers, the derivation of protection limits and the adjustment of the system alignment. A strong emphasis lies on the evaluation of an adaptive controlled loudspeaker system. Various methods for evaluating the transducer protection system, the reduction of nonlinear distortion and the compensation of ageing-effects are discussed and demonstrated.

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EXHIBITION HOURS October 30th   10am - 6pm October 31st   10am - 6pm November 1st   10am - 4pm
REGISTRATION DESK October 28th   3pm - 7pm October 29th   8am - 6pm October 30th   8am - 6pm October 31st   8am - 6pm November 1st   8am - 4pm
TECHNICAL PROGRAM October 29th   9am - 7pm October 30th   9am - 7pm October 31st   9am - 7pm November 1st   9am - 6pm
AES - Audio Engineering Society