Dsp Sis Commands - Extron electronics DMP 128 User Manual

DSP SIS Commands

Many digital signal processor (DSP) functions: gain, mute, group masters, and a protected
configuration can be controlled using SIS commands. These commands follow the same
general rules as basic SIS commands, but the variables ( X/ ) tend to be more complex.
Also, an understanding of the audio signal flow is helpful to understanding the commands.
Figure 101 shows the specific DSP functions available for SIS commands.
NOTE: Signal flow is described in greater detail in the section,
Mix-point, Processing Blocks, and Signal Chains
A
Figure 100.
Mic/line input gain controls block (including gain and mute)
A
Input pre-mixer gains block (including gain and mute)
B
Virtual returns pre-mixer gains
C
Output trim control (post-mixer trim), gain only
D
Output volume controls (including gain and mute)
E
B C
DSP Processors Addressable via SIS Commands
Audio level,
on page 29.
D E
DMP 128 • SIS Programming and Control 141