Resources

"Modeling of Loudspeaker Systems Using High-Resolution Data", paper presented at the 121th AES convention, San Francisco, CA, USA 5-8th of October 2006.

Link to the paper in the AES Online E-Library. (You have to be a member of the AES online library. Please note that subscription costs are low.)

Stefan Feistel, Wolfgang Ahnert
AFMG Technologies, Berlin, Germany
 

Abstract
The need for high-resolution loudspeaker data is evaluated in detail, in particular complex data in their original impulse response or frequency response formats, and how a new data format proposed earlier can be used for storing this and other information required to describe a complex loudspeaker system adequately. Prediction results for several loudspeaker models are compared based on different spectral and spatial resolutions. Calculations are also compared against measurements for different loudspeaker types, such as multiway loudspeakers, clusters, and line-array systems. Finally the advantages of more precise predictions are discussed with respect to increasing requirements regarding computer performance and data storage.

Practical benefits:
The paper shows that with today's computer processing power, there is no objective reason to refrain from creating and utilizing high-resolution loudspeaker data, which significantly improves the accuracy of acoustic simulations. Along with the GLL technology and software such as EASE and EASE SpeakerLab available, the benefits of high-resolution loudspeaker data can be exploited right away by loudspeaker manufacturers as well as by users of acoustic modeling software.