Waldorf STVC, Руководство пользователя

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Appendix
32 STVC Manual
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 fea-
ture makes sounds even more expressive (e.g. through
vibrato).
Amount
The extent to which modulation influences a given para-
meter.
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.
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.
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 effectively limits 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.
Control Change (Controllers)
MIDI messages enable you to manipulate the response of a
sound generator to a significant degree.
This message essentially consists of two components:
• The Controller number, which defines the element to be
influenced. It can be between 0 and 120.
• The Controller value, which determines the extent of the
modification.
Controllers can be used for effects such as slowly swelling
vibrato, changing the stereo panorama position and influ-
encing filter frequency.