Extron electronics DMP 64, User Manual

Page: 23 / 152

DSP Processing/Signal Flow
The diagram below shows the signal flow and DSP processing per signal chain. Signal
chains and matrixes are described in the following sections.
Mic/Line Input 1
Mic/Line Input 2
Mic/Line Input 3
Mic/Line Input 4
Mic/Line Input 5
Mic/Line Input 6
A
B
C
D
1
2
3
4
5
6
A B C D
1
2
3
4
Outputs
Virtual Bus Send
Virtual Bus Return
FLT DLY
LOUD
DYN VOL TRIM
FLT DLY LOUD DYN VOL TRIM
FLT DLY
LOUD
DYN VOL TRIM
FLT DLY LOUD DYN VOL TRIM
GAIN GAIN
FLT FBS DYN DYN DLY DUCK
GAIN GAIN
FLT FBS DYN DYN DLY DUCK
GAIN GAIN FLT FBS DYN DYN DLY DUCK
GAIN GAIN
FLT FBS DYN DYN DLY DUCK
GAIN GAIN FLT FBS DYN DYN DLY
DUCK
GAIN GAIN FLT FBS DYN DYN DLY
DUCK
Inputs
FLT DYN GAIN LOUD
FLT DYN GAIN LOUD
FLT DYN GAIN
LOUD
FLT DYN GAIN LOUD
Figure 13.
DMP 64 DSP Signal Flow Block Diagram
All signal routing, processing, and level control (gain/trim/volume), are accomplished using
software control from a PC connected to the DMP 64 via the USB configuration port,
the LAN connection (recommended) or one of the RS-232 ports. The DSP Configurator
program provides complete control while the internal web pages and SIS commands
provide more limited control.
This chapter describes the signal processing including parameter ranges, and how to mix
inputs and outputs using the DSP Configurator control program. Detailed information
for configuring the processor blocks, mix-points and level controls are found in
DMP
Software .
Mic/Line Input Signal Chain
Input signal chain GUI elements from left to right are as follows:
• Gain (GAIN) –
mono gain control with a range from -18 to 80 dB includes mute
button. A polarity switch (+/-) and phantom power on/off is provided, and a meter
displays post-fader audio level in dBFS.
• Filter (FILT) – up to five frequency filters can be inserted in any combination of High
Pass, Low Pass, Bass & Treble shelving, or Parametric Equalizer.
•
Feedback Suppressor (FBS) – Provides 15 dynamic filters and 5 fixed filters for
effective feedback control (primarily of microphone inputs).
• Dynamics 1 (DYN) –
Dynamics processors vary the dynamic level, (the range of
loudest to softest signals). Choices include AGC, compressor, limiter, or noise gate.
• Dynamics 2 (DYN) –
a second dynamics processor can be inserted from a choice of
AGC, compressor, limiter, or noise gate.
DMP 64 • Operation 17