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The Zone Processor block provides source selection, level control, and paging for an audio output zone. Included in every Zone Processor is an automatic connection to the Distributed Program Bus, which simplifies the wiring to multiple zones of background music and other common audio sources. Auxiliary inputs to the Zone Processor allow the addition of local inputs (for example, jukeboxes, TVs, laptops, or local microphones) reinforced in this zone only. Also included in every Zone Processor is a Priority Selector block for controlling source selection (via automatic or end user control), a Level block for controlling the zone volume, and a Paging Zone block connecting the zone to the HAL paging system (which ducks program audio when end users page into the zone).
The Zone Processor includes several powerful options for end user control of zone volumes and audio sources. If you need remote volume control only, link the Zone Processor's Level block level control to a DR1. If you need remote control of source selection only, link the Zone Processor's Priority Selector block selector control to a DR2. If you need remote control of both the volume and the source selection, link the level and selector controls to a DR3. You can also provide independent control of all zone volumes from a single location (for example, a hostess station or manager’s office), by linking each Zone Processor's level control with a corresponding level control on a single DR3.
For more details on the Zone Processor's functionality, see About Zone Processing.
Included here is basic information for adding a Zone Processor block to your system. For more details about working with the Zone Processor, including detailed procedures and example scenarios, see Zone Processing.
note: More processing is often required to condition audio for reinforcement. This typically includes dynamics processing to limit SPL and protect loudspeakers, equalization to compensate for loudspeaker frequency response and room modes and reflections, and output level to match the maximum output of the DSP processor to the maximum input of an amplifier. To provide this conditioning, you can add Dynamics, Filter, and Output blocks to the processing map downstream of the Zone Processor.
|Distributed Program Bus flag||Represents the automatic inclusion of the Distributed Program Bus channels|
|Local input node||Connection point for wiring local input to the Zone Processor block|
|Output node||Connection point for wiring the Zone Processor input to a specific output|
|<Add> node||Click to add another Input node, or wire to the <Add> node to automatically create a new channel.|
|Zone flag||Represents the Zone Processor's paging zone (and automatic connection to the paging system)|
|Priority Selector block||Select from the Zone Processor's input sources and configure up to three priority detectors.|
|Level block||Control the volume in the zone.|
|Paging Zone block||Configure paging parameters for the zone.|
For more details on these blocks internal to the Zone Processor, see About Zone Processing.
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