Audio Routing - Lexicon MPX 1 - MIDI IMPLEMENTATION DETAILS Midi Implementation Manual

Lexicon
The bit assignments for Input types are:
LIVE_PA 0x01
VOCAL 0x02
GUITAR 0x04
KEYBOARD 0x08
ACOUSTIC 0x10
DRUMS 0x20
TEMPO 0x40
SOUND_FX 0x80
Audio Routing (Bytes 400-479)
Audio Routing data defines how the audio data moves in and around the system for the current program.
The audio routing is broken up into 8 blocks; one for each effect type, one for the input and one for the
output. The effects blocks represent the signal flow into, through and out of the box (left to right on the Map
and Order screens of the system). Each block consists of the following 5 one byte fields:
0 - Effect Type (Parameter Type 0x0146)
1 - Upper Input Connection (Parameter Type 0x0143)
2 - Lower Input Connection (Parameter Type 0x0144)
3 - Routing (Parameter Type 0x0145)
4 - Path Type
These descriptions can be used for range limits, etc..
The Effect Type will always be one of the following:
0 - Pitch
1 - Chorus
2 - EQ
3 - Modulator
4 - Reverb
5 - Delay
6 - Input
7 - Output
As the blocks represent signal flow through the box, the Effect Type of the first block will always be "Input"
and the Effect Type"of the last block will always be "Output". Aside from that, the effects can be in any order
with the condition that all of the effects types must always be used, and no single effect type can be used
twice.
Upper Input Connection and Lower Input Connection describe the way that the audio signal is fed to the
respective inputs to the effect block. The following connection types are available:
0 - Stereo to Stereo
1 - Left to Left
2 - Right to Right
3 - Left to Left and Right (mono)
4 - Right to Left and Right (mono)
If the block does not use the lower path, the input connection will be ignored but will become active if
needed.
Note that the input block "Upper" and "Lower" connections are place markers and are not actually used
by the system.
The Routing field defines how the particular block deals with the upper and lower audio paths. The
following type of Routing have been defined:
0 - Upper
1 - Lower
2 - Parallel
3 - Merge
4 - Split
MPX 1 MIDI Implementation Details
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