Waldorf Blofeld Keyboard - Manual (Page 122)

Appendix
Blofeld User´s Manual 122
Program Change
These are MIDI messages that switch sound programs.
Program numbers 1 through 128 can be changed via
program change messages.
Release
An envelope parameter. The term "Release" describes the
descent rate of an envelope to its minimum value after a
trigger is terminated. The Release phase begins
immediately after the trigger is terminated, regardless of
the envelope's current status. For instance, the Release
phase may be initiated during the Attack phase.
Resonance
Resonance is an important filter parameter. It emphasizes
a narrow bandwidth around the filter cutoff frequency by
amplifing these frequencies. This is one of the most
popular methods of manipulating sounds. If you
substantially increase the resonance, i.e, to a level where
the filter begins self-oscillation, then it will generate a
relatively clean sine waveform.
Sustain
An envelope parameter. The term "Sustain" describes the
level of an envelope that remains constant after it has run
through the Attack and Decay phases. Sustain lasts until
the trigger is terminated.
System Exclusive Data
System exclusive data allow access to the heart of a MIDI
device. They enable access to data and functions that no
other MIDI messages are able to address. "Exclusive" in
this context means that these data pertain only to one
device type or model. Every device has unique system
exclusive data. The most common applications for SysEx
data include transfer of entire memories and complete
control of a device via a computer.
Trigger
A trigger is a signal that activates events. Trigger signals
are very diverse. For instance, a MIDI note or an audio
signal can be used as a trigger. The events a trigger can
initiate are also very diverse. A common application for a
trigger is its use to start an envelope.
Volume
The term describes a sound's output level