Waldorf PPG Wave 2.V, Руководство по эксплуатации

Страница: 29 / 36

PPG Wave 2.V
Operation Manual 29 Waldorf
Glossary
Aftertouch
Most modern MIDI keyboards can generate Aftertouch data. If you additionally press
down an already held note on such a keyboard, then this generates Aftertouch MID
messages. This is used to give the sound an additional expressiveness (e.g. by opening a
filter this way).
Aliasing
Aliasing is an audible side effect that occurs in digital systems, as soon as the useful
signal contains frequencies that are higher than half the sample frequency.
Amplifier
Here: A device that changes the level of a sound according to a controlling signal that it
receives. The controlling signal is often created by an Envelope.
Arpeggiator
An Arpeggiator is a device that splits an incoming MIDI chord into its individual notes
and repeats them rhythmically. Often, different pattern types can be preset to cover a
wide application range. As it is simple to use and creates interesting results, this functi-
on offers a lot of fun.
Attack
Parameter of an Envelope. Attack is the term used to describe the time that an Envelope
needs to reach its maximum peak. The Attack phase starts directly when the trigger sig-
nal comes in, e.g. when you press a key on your keyboard.
Clipping
Clipping is a distortion that occurs, when a signal level exceeds its maximum available
headroom. The character of a “clipping” signal depends on the system type in which it
occurs. In an analog system, the signal is limited to its maximum level. In a digital sys-
tem, clipping is the equivalent to numeric overflow, which reverses signal polarity abo-
ve the maximum possible value.
Controller (Control-Change)
You can automate many PPG Wave 2.V parameters using MIDI Controller messages.
This lets you e.g. create interesting sound transformations in real time. Controller data is
directly created when you use the corresponding dials. and it can e.g. be recorded in
your sequencer program. You can also graphically create MIDI Controller data in the
respective Editor of your program. (Please read the manual of your host application for
more information). A list of all available MIDI Controllers and their functions can be
found at the end of this manual.
Cutoff
see Filter Frequency.