•
For low-pass (LP) filter types, frequencies above
the cutoff frequency are damped:
Frequency
Magnitude
Cutoff frequency
•
A band-pass (BP) filter damps frequencies
around the cutoff frequency. As a result, bass
and treble get attenuated.
Frequency
Magnitude
Cutoff frequency
•
A notch filter rejects frequencies around the cut-
off frequency and passes everything else.
Frequency
Magnitude
Cutoff frequency
•
A high-pass (HP) filter attenuates all frequencies
below the cutoff frequency and passes the higher
frequencies unchanged.
Frequency
Magnitude
Cutoff frequency
The filters described above form the basic filters en-
countered in most synthesizers. The low-pass filter is
the most common, as it fully preserves the bass fre-
quencies and allows the natural progression from a
bright to a dark timbre when being modulated.
To modulate the cutoff frequency and produce a dy-
namically changing timbre, the MSEGs, LFOs and the
filter envelope can be used. The most common way to
control cutoff is the filter envelope, discussed later in
this chapter.
30
DUNE 2 User’s Manual
Содержание DUNE 2
Страница 1: ...User s Manual...