11
Alero 8-Channel Microphone Mixer Instruction Manual
Configuration
Levels
To get an overview of current audio signal levels for all input and output channels, open the
Levels
page (FIG. 23). This page has
three sections further defined below:
Signal Level
Microphone Volume
Channel Volume
Signal Levels
The Signal Level chart is a real time indication of the microphone input channels and Alero’s output channel activity and volume
levels.
Amplitude Limiters
Alero provides limiting which prevents each output from exceeding a predetermined level. The auto limiting feature will very quickly
prevent the signal from clipping. Indicators are provided for each output that display when the signal has reached the limiting
threshold by filling in the circle.
Microphone Volume
In audio mixers there is generally a two stage volume control. Stage one (Input Gain) compensates for the wide range of levels
that may be presented by the various types of microphones with diverse gain structures. Stage two provides a compensated volume
range (Volume Level) that is used to adjust the levels in a nominal range.
Input Gain
The Input Gain adjustment is the first stage and sets the input mic gain. With the Volume Level set to 0 db, set the Input Gain mic
level as high as possible without any audible distortion, with some margin (approximately around 35 dB).
FIG. 23
Levels Page - Signal Levels Chart
FIG. 24
Levels Page - Signal Levels Chart