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Following is an explanation of the purpose of each section:

Application Framework:

Manage global tasks such as discovering, connecting to, and applying con-

figurations to HAL devices. Manage and configure the software application itself.

Hardware Workspace:

Specify, configure, and troubleshoot the physical hardware components of your

audio system.

Processing Workspace:

Wire together the audio processing components of your system, adding and con-

figuring processing blocks such as equalizers, matrix mixers, compressors, limiters, and so on. Manage and
configure presets, control links, paging, events, and room combine layouts.

Notice that Halogen separates the hardware view from the processing view of your audio system. A key benefit of
this separation is the flexibility it provides when configuring the system's various inputs and outputs. For example,
suppose you have a RAD2 in your audio system. You drag the RAD2 device into the Hardware Workspace but
then go to the Processing Workspace to configure the RAD2's line input and mic input. This separation of hard-
ware from processing allows you to work with each input and output individually instead of having to work with
the hardware device as a single entity. It also allows you to focus on hardware in one place and audio flow and
processing in another place—simplifying your job as a result. Brilliant!

Another benefit of separate hardware and software workspaces is that the necessary hardware for an installation can
be rapidly specified in the hardware workspace without concern for audio flow and control in the processing work-
space. This starting configuration file can then be loaded into the HAL device before shipping the rack to the job
site. This enables installers to have the massive infrastructure troubleshooting assistance of HAL. If the installers
work faster and more accurately, punch lists are much shorter, jobs go faster and you can finish more jobs per unit
time. For insight into what the heck this is trying to tell you, read the blog entry about Halogen’s "Get on the
Plane”indicator. This can save you days of system troubleshooting - and associated cash.

Workspace Layout

As you may have noticed in the images on the preceding page, the

Hardware Workspace

and the

Processing

Workspace

have similar layouts. On the right is the actual workspace itself in which you create your system. Asso-

ciated with each workspace is a palette of objects on the left and a toolbar specific to the workspace. To add an
entity to your audio system, you drag one or more objects from the palette to the workspace.

The Hardware Workspace is associated with one palette that contains (care to guess?) hardware devices that
include RADs, DRs, and EXPs. To add one of these devices to your design, you drag it into the Hardware
Map and drop it on the appropriate HAL port (appropriate ports are highlighted based on the device you are
adding). When you add hardware to the Hardware Map, the controls, inputs, and outputs associated with
that hardware are automatically added to the Processing Workspace

I/O

and

Control

palettes.

The Processing Workspace is associated with three different palettes:

1. Open the

I/O

palette when you are ready to

wire together

all your inputs and outputs. Available

in the palette are the inputs and outputs associated with the hardware you selected in the Hard-
ware Workspace. You drag the inputs and outputs you want into the Processing Map and then
wire them appropriately.

2. Open the

DSP

palette when you are ready to configure your signal processing. This palette con-

tains all the different processing blocks available within the HAL DSP engine.

3. Open the

Control

palette when you are ready to configure and manage the linking of controls on

DRs to parameters in your audio system. This palette contains the control devices you selected in
the Hardware Workspace.

HAL SYSTEM INSTALL GUIDE