Handbook for Sound Engineers

Computer Aided Sound System Design 1361

Compared to conventional, tabular data formats this
flexibility is unequaled. It is obvious that with a mathe-
matical model of sufficient accuracy many of the previ-
ously discussed issues can be resolved. But at the same

time, the development of a DLL module requires some

programming effort. As an encoded binary file it is also

proprietary to the loudspeaker manufacturer, so normally

the user of simulation software and DLL plug-ins cannot

determine how the loudspeaker system is actually

modeled. Unless sufficient information is published by

the creator of the DLL, the end user cannot estimate the

level of prediction accuracy the model provides.

Figure 35-22. High resolution and EASE 4.0 amplitude and phase presentation.

D. Phase balloon in EASE 4.0 resolution.

A. Amplitude balloon in high resolution.

B. Amplitude balloon in EASE 4.0 resolution.

C. Phase balloon in high resolution.

Figure 35-23. AutoCAD drawing of a loudspeaker showing
the point of rotation PR and the case (mechanical) refer-
ence point MR.

Figure 35-24. Screenshot of an EASE DLL.