Glossary - Waldorf MicroWave XT Bedienungsanleitung

Glossary

Aftertouch
The majority of contemporary keyboards are capable of generating aftertouch messages. On
this type of keyboard, when you press harder on a key you are already holding down, a
MIDI Aftertouch message is generated. This feature makes sounds even more expressive
(e.g. through vibrato).
Aliasing
Aliasing is an audible side effect arised in digital systems as soon as a signal contains
harmonics higher than half the sampling frequency.
Amount
Describes to which extent a modulation influences a given parameter.
Amplifier
An amplifier is a component that influences the volume level of a sound via a control
signal. This control signal is often generated by an envelope or an LFO.
Arpeggiator
An arpeggiator is a device that splits an incoming MIDI chord into its single notes and
repeats them rhythmically. Most arpeggiators feature different sequence modes to cover a
wide range of applications. Typical controls for an arpeggiator are the octave range, the
direction, the speed and the clock, which means the repetition interval. Some arpeggiators
also feature preset or programmable rhythm patterns.
Attack
An envelope parameter. "Attack" is a term that describes the ascent rate of an envelope
from its starting point to the point where it reaches its highest value. The Attack phase is
initiated immediately after a trigger signal is received, i.e. after you play a note on the
keyboard.
Band Pass Filter
A band pass filter allows only those frequencies around the cutoff frequency to pass.
Frequencies both below and above the cutoff point are damped.
Band Stop Filter
A band stop filter does the opposite to a band pass filter, i.e. it dampens only the
frequencies around the cutoff point and lets all other frequencies pass through.
Clipping
Clipping is a sort of distortion that occurs when a signal exceeds its maximum value. The
curve of a clipped signal is dependent of the system where the clipping takes place. In the
analog domain, clipping works like limiting the signal to its maximum level. In the digital
domain, clipping is similar to a numerical overflow and so the polarity of the signal's part
above the maximum level is negated.
User's Manual MicroWave II • MicroWave XT • XTk 117