Room Models

First we determine three key parameters:
1. What kind of source material will be used?
2. What is the required sound pressure level?
3. What are the budgetary constraints?

The next step is to choose one of three loudspeaker layout stategies.
1. Centralized Systems.
2. Decentralized Systems
3. Distributed Systems

Next, a preliminary design is entered into the Sound System Software computer programs and refined. A good design is judged by its ability to meet these three goals:

1. Provide even coverage over the entire audience area.
2. Provide the appropriate sound pressure level.
3. Provide the highest possible speech intelligibility.

Everyone should be able to understand speech reproduced by the system.

3D room model with speakers & coverage information shown on right.

Reverb time graph	Problem rooms can be detected by using test equipment to find the actual room reverb time. We can also use this information (on the left) to verify the accuracy of our computer models.
Reverb time graph	Intelligibility graph
	The BOSE Modeler Design Program predicts the Speech Transmission Index (STI), a worldwide standard for evaluating speech intelligibility. (See above) This point response graph (shown on the left) can pinpoint individual reflections that can interfere with the intelligibility of the room.

See an animated computer model with Coverage, STI and Intelligibility plots (sorry-temp out of order)