Extron electronic MPX Plus 866 A manual Audio signal processor chains and control blocks

PRELIMINARY

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Audio signal processor chains and control blocks

Each of the four signal processing chains (A, B, D, and F) consists of a series of control blocks of two basic types that are specific to that chain: gain, trim, post-gain, and volume control blocks (collectively known as “gain blocks” – ) and processor blocks (). For example, the computer audio input 1 chain consists of a gain fader, a filter block, two dynamic blocks, a delay block, and a trim fader. Gain controls are always present (active) in the signal processor chain. Processor blocks, while always shown in the program window, must be individually activated (“inserted”) as shown in figure 5-5.

Many gain blocks can be muted and process block controls can be bypassed. Mutes and bypasses are shown by red indicator(s) in the block.

Gain blocks — The parameters set by the gain blocks are always present in the signal chain. To access the actual fader control to view a value, make a change, or observe a live audio meter (Gain and Trim blocks only), double- click the gain block icon (figure 5-4). This action opens a dialog box, a new window that contains the fader for that control.

A dialog box opens, which contains the full fader control.

NOTE The meter display is for example only. In Emulate mode (the startup mode), the meter is not operational.

Figure 5-4 — Accessing a typical gain control dialog box

Processor blocks — Each processor block control represents a menu of one or more possible processes (such as filters) that can be inserted into the audio stream. For blocks that provide more than one processor, only one processor can be selected. Each block can be inserted by a double-click or right-click >Insert and selecting the desired processor (figure 5-5). Once a block is inserted, the selected processor is displayed in the block and the block itself changes color.

Double-click the processor block.

A dialog box opens,
which contains the	Click to select
processes available
	the desired process.
in this block.

The selected processor is displayed in the block.

If you want to change the process’s variables, double-click the block again, opening a separate window.

Figure 5-5 — Selecting a typical processor block dialog box

5-6 MPX Plus 866 A Media Presentation Matrix Switcher • Switcher Software