Smart Loudspeaker Systems

摘要：

　　Digital signal processing (DSP) combined with efficient amplification and new sensing techniques gives new possibilities to overcome the limitations of passive transducers to generate smart loudspeaker systems which produce more acoustical output at higher quality while using less size, weight, cost and energy.This paper gives an overview of adaptive nonlinear control which compensates for linear and nonlinear distortion, stabilizes the voice coil position and protects the transducer against thermal and mechanical overload.The control technique is based on nonlinear lumped parameter modeling and identifies all parameters and state variables of the model adaptively by monitoring voltage and current at the loudspeaker terminals.Furthermore, this paper discusses the consequences for passive transducer design, power amplification and system integration.

关键词： loudspeaker nonlinear adaptive control protection linearization,equalization stabilization transducer design

作者: Wolfgang Klippel

作者单位: Klippel GmbH, Dresden,Germany

会议类型: 国内会议

会议名称: 第五届电声技术国际研讨会( International Symposium on ElectroAcoustic Technologies)(ISEAT 2015)

会议地点: 深圳

会议语种:英文

页码: 66-79

在线出版日期: 2015-11-13（万方平台首次上网日期，不代表论文的发表时间）