Extron Electronics MLS 608 D Series User Guide - Manual (Page 39)

The purpose of the speaker building blocks is to normalize the inherently non-linear
response of a ceiling speaker array, as opposed to flattening the on-axis response of a
single speaker. Depending upon the source, additional sweetening of the signal may be
desired. For microphones, a high pass filter should be employed to eliminate popping
and in certain cases, tone shaping of the speech range may be desired. For music
sources, a bass boost is often employed to sweeten the sound at lower levels. Since
the "sweetening" for microphones and music sources are, for all intents and purposes,
somewhat opposite, adding this to the outputs would render an output ideal for one or
the other, but not both. As such, Extron has included the "sweetening" curves into the
input building blocks, allowing voice lift and music to coexist in the same speaker system
while maintaining attributes needed for both.
Inserting a building block
When you select a channel, only building blocks compatible
with the selected signal path are displayed in the building
blocks list.
To insert a building block for an input:
1. Click the input channel number located beside the
channel name. The Building Blocks dialog box opens,
listing all possible input templates (such as for a mic or
line input).
NOTE: The Building Blocks dialog box may differ
from the image shown at right depending
on the signal path.
2. Click the desired input channel building block in the list. The Building Blocks dialog
box closes and the input channel building block loads all pre-configured processor
blocks, sets the gain, and gives a name to the channel.
To insert a building block for an output:
1. Click the output channel number located beside the channel name. The Building
Blocks dialog box opens, listing all possible output templates (such as a speaker type).
2. Click the desired output channel building block in the list. The Building Blocks dialog
box closes and the output channel building block loads all pre-configured processor
blocks and gives a name to the channel.
After inserting a building block, you can modify the processor blocks if desired.
MLS 608 D Series • Operation 33