Rane HAL1x Design Guide - Page 132

HAL SYSTEM DESIGN GUIDE As you can see, the Room Processor contains the blocks (already routed appropriately) that are needed for configuring the room's audio. Configurable blocks included are the Gain-sharing Mixer and Mixer (displaying the inputs wired to the Room Combine Processor block), a Selector (containing the summed output from the two mixers as well as the Distributed Program Bus channels), a Level (for configuring the output volume), and a Paging Zone (for configuring ducker depth and page volume). Now let's take a look at the room that results from opening the wall between Room A and Room B (or A+B): The configuration process is the same, but you'll notice a few differences in the A+B Room Processor's blocks: The same blocks are included, of course, but notice the additional inputs in the two mixers. The Room Combine Processor block has combined the inputs from the included base rooms. The Selector block contains Record Out nodes from both base rooms. And the Paging Zone block contains the paging zones and Room Out nodes from both base rooms. In essence, the inputs and outputs from the constituent base rooms now service the combined room and a page into either base room will be heard in the combined space. The configuration process is the same regardless if you're working with a base room or a combined room. Subsequent sections of this topic cover the configuration steps in more detail, so we'll gloss over those details at this point. The key thing to understand is that each room operates as a separate, unique entity-each having its own configuration. Imagine that all the Room Processors are stored on a shelf (in this example, there would be five Room Processors on the shelf). When you open a wall, the Room Processors required by the room combination that is activated come off the shelf and Room Processors that preceded the wall opening go on the shelf. When you close the wall, or open another wall, the same exchange takes place. Whatever room combination is currently active dictates which Room Processors are active. How do control links, paging, and the Distributed Program Bus behave in a room combine situation? So you've linked a DR1 to a Level control in Room A and another DR1 to a Level control in Room B. What happens when those rooms are combined? How do you make sure the two DR1 devices track one another? What about paging? Does someone sending a page to this area need to know that Rooms A and B are now combined? And what about those Distributed Program Bus channels? How do they work in conjunction with the local inputs and what happens to all those inputs when the rooms are combined? Read through this 128