Kramer Electronics Ltd.
AFM-20DSP
– Processing Audio Signals
25
Input / Output Channels Operation
This section describes the function of the input and output sliders (the examples in this
section, showing the inputs, apply also to outputs).
Note
- In figures 21 and 22 below, meters (left side) display on a scale of -100 dBFS to 0
dBFS maximum (above this is clipping or audio saturation). On the right side, the gain level
points to amplification for positive values and attenuation for negative values.
Level Measurement Indicators
:
The audio signal enters the digital system at
a certain level and is measured in dBFS
units (dB relative to full scale, the maximum
value).
•
Maximum level indicator
– shows the
highest registered level (in RMS) and
can change only if a higher level is
detected.
Click the indicator to reset to the
current maximum value.
•
0dBFS
– refers to the maximum signal
level that can enter the system. signal
levels higher than the system limit are
clipped.
•
Current maximum level indicator
–
displays the current maximum level
and holds it until a higher value is
detected.
`Figure 21: Level Measurement Indicators
Gain/Attenuation Fader
•
Maximum level
– 15dB is the maximum
gain.
•
Unity gain
– when volume fader is set to
0dB, the input level is not changed.
•
Volume fader
– slide to increase or
decrease the audio level.
•
Minimum level
– -100dB is the
maximum attenuation.
•
Current fader position
– shows the
current position of the fader. You can
also type a volume level into this box
and press
Enter
on your PC.
Figure 22: Channel Fader
