Specifications

Meters
8
dSPXTREmE mETERS
The DSPXtreme has a dedicated LCD screen on the left displaying instant IO and processing metering. You can
switch from processing metering to IO metering (and back) with the button located on the bottom-right side of
the touch-screen.
I/O metering
The input meters show the level of the input audio. The meters are ‘hooked in’ to the DSP code after the input
level selection and mode options.
The output meters represent the level in dB below full scale output. This output level is the peak output level of
the processing and has nothing to do with the actual output level set by the analogue and digital output level
options.
The output meters show a smaller dynamic range compared to the input ones. This reflects the smaller dynamic
range of the audio once processed by the DSPXtreme. If we were to have used the same scale as the input
metering we would not see a lot of activity on the LED’s, with all of the LEDS on most of the time.
The multiplex output metering represents the composite outputs peak level. This is a representation of the out-
put in relation to the peak composite level of the processing and not the actual level set by the multiplex output
level control.
The IO meters follows an approximation of the PPM level of the audio waveform while a floating ‘peak hold’ dot
tracks the absolute value of the waveform
G/R metering - four band AGC
The gain reduction/boost meters show the gain reduction and gating status of the multi-band AGC stage. The
range shown is -6dB to +20dB in 2dB steps with GATE or HOLD indicated by red color of the meters.
There is only one meter per stereo channel and the value shown is the largest gain reduction of the left and right
channels. Under normal operation (with a stereo audio feed) this is fine but you may observe strange metering if
the channels are not very balanced in level or you are using the DSPX to process two seperate mono feeds.
GR meters
Change from I/O metering and GR metering with this button