Peavey DPM V3 Owner's Manual page 90

7.5b Mode messages
There are two messages that determine the MIDI mode (i.e., how devices will receive
MIDI data). The "omni" message determines how many channels will be recognized.
Omni on means that data from all channels will be received; Omni off limits the
number of channels, usually to one.
The "mono/poly" message deals with voice assignment within the synthesizer. In
Mono mode, only one note at a time plays in response to voice messages; in Poly
mode, as many voices can play notes as are available to play notes.
Using these two messages in various combinations produces the following mode
messages.
Omni On/Poly (Mode 1) The synthesizer' s voices respond to voice messages occur-
ing on any channel. y
Omni On/Mono (Mode 2) This móde is seldom implemented because playing one
note out of the data occurring on all 16 channels is not very useful.
Omni Off/Poly (Mode 3) In this extremely common mode, the DPM V3 is tuned to a
single channel; any incoming messages are assigned to synth voices, up to the max-
imum number of 16 voices.
Omni Off/Mono (Mode 4) Voice messages are received over several channels, but
each channel plays monophonically. In other words, you could play one voice on
channel 1, one voice on channel 2, etc. The DPM V3 implements an improved version
of Mono mode called dynamic allocation, which lets the synth receive polyphonic data
over each channel.
7.5c Other messages
Local Control On/Off This is used with keyboards that also include built-in sound
generators. With Local Control on, playing the keyboard triggers the internal voices
and sends data out the MIDI out jack. With Local Control off, the controller data does
not trigger the internal voices, but does send data out MIDI out. The Instruments win-
dow allows you to send Local Control offfon messages directly from Beyond. The main
use for Local Off is to play an expander module from a master keyboard, but not trig-
ger the internal sounds.
All Notes Off This command, if recognized by the receiver, will turn off any "stuck"
notes. These usually occur when a device receives a note on message, but for
whatever reason (e.g., someone tripping over a patch cord) doesn't receive the cor-
responding note off command.
7.5