Handbook for Sound Engineers

Computer Aided Sound System Design 1353

• Opening angle.


• Aiming angle.


• Focus distance.


• Mounting height with respect to audience area.

This solution, however, finds its limitations with a
complicated audience-area layout. Moreover, certain
sound level distributions can be obtained only after
several corrections. This gives rise to questions like:
“How can a loudspeaker array be controlled so as to
create a predefined far and near field response?” One
approach was made by Duran Audio with the digital
directivity synthesis (DDS).^22

Here the directivity pattern of an array is adaptable

to audience areas; and uniform SPL distribution also

becomes possible in complex-shaped audience areas.

Figure 35-18. Cluster balloon presentation of Intellivox 2C

in EASE.

C. 4000 Hz.

A. 1000 Hz.

B. 2000 Hz.

Figure 35-19. ICONYX Series from Renkus-Heinz Inc.