Dsp Sis Commands For Mix-Point Level And Mute Control - Extron electronics DMP 128 User Manual

DSP SIS Commands for Mix-Point Level and Mute Control

Gain, mute, group masters, mix-points, 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. Before attempting SIS
control of the DSP, a comprehensive understanding of the audio signal flow is helpful to
understanding the commands. Figure 113 shows the specific DSP functions available for
SIS command control of the mix-points.
NOTE: This supplement refers only to the mix-point and corresponding level and
Outputs
Inputs
Virtual Returns
Expansion Inputs
Figure 112.
The Mix Matrix mix-points addressed by this section are:
•
•
•
Setting the level of a single mix-point in the mix matrix requires an SIS command that
contains both the mix-point location and level. Making or breaking a connection between a
mix-point input and output requires the mix-point location be unmuted or muted.
mute control commands. See
commands and functions.
Output
Mix Matrix
1 2 3 4 5 6 7
1 2 3 4 5 6 7
1 - 8 1 2 3 4 5 6 7
9 - 16
DSP Processors Addressable via SIS Commands
Output Mix Matrix (including level and mute)
Virtual Send Mix Matrix (including level and mute)
Expansion Output Mix Matrix (including level and mute)
DSP SIS Commands
Virtual Send Expansion Output
Mix Matrix Mix Matrix
8
Virtual Send Bus Expansion Outputs
8 A B C D E F G H 1 2 3 4 5 6 7 8 Expansion Outputs
9
10
11
12
13
14
15
16
8 A B C D E F G H
DMP 128 • Reference Information
on page 141 for basic SIS
170