High Pass - Hp; Band Pass - Bp; Notch; Filter Frequency - Clavia NordStage2 EX 88 User Manual

High Pass - HP

Filter Frequency

Filter Frequency
If HP is used, frequencies below the Filter Frequency setting will be at-
tenuated, frequencies above the cutoff will not be affected.

Band Pass - BP

Envelope range
Filter Frequency
Time
A bandpass filter allows frequencies close the Filter Frequency setting
to pass, while frequencies above and below the cutoff will be attenu-
Envelope range
ated.
• The Filter Resonance sets the width of the frequency range that will
Filter Resonance
pass through the band pass filter.
Time

Notch

Filter Frequency
Filter Resonance
Envelope range
Filter Frequency
Time
A Notch filter is the opposite of the Band Pass filter, it passes most of
the frequencies unaltered, but attenuates those in a specific range.
• The Filter Resonance sets the width of the frequency range that will
be attenuated with the Notch filter.
Filter Resonance
Filter Frequency
Filter Frequency
The Filter Frequency is used for setting the cutoff frequency point -
where in the frequency range the filter begins to process frequencies.
This parameter can be Morph controlled.
The Image above illustrates three different Filter Frequency settings
using a low pass filter. The area to the left, up to the downward slope
indicates the frequencies that passes through the filter. The area to
the right of the slope are those frequencies that are reduced. Move
the slope to the left and the sound gets duller. The "humps" at the top
indicates a resonance setting. Ok, enough science.
Filter Frequency
Filter Frequency
Filter Frequency
Filter Frequency
Filter Frequency
Filter Frequency
Filter Frequency
Filter Frequency
Filter Frequency
Filter Frequency
Filter Frequency
Filter Frequency
Filter Frequency
Filter Frequency
Filter Frequency
Filter Frequency
Filter Frequency
Envelope range
Filter Frequency

KB Track

The reason for having a Keyboard Track switch is related to basic
Filter Frequency
acoustics. If you raise the pitch of a waveform, the harmonics naturally
Filter Frequency
raise in frequency. If the cutoff frequency is constant, the sound will be
perceived as getting "muddier" the higher up the keyboard you play. To
avoid this effect, use KB Track.
With KB Track turned off, the filter frequency setting is constant re-
gardless of where on the keyboard you play. When Keyboard Track is
Filter Frequency
Filter Frequency
activated, the filter frequency setting will be higher for higher notes.

Resonance

Filter Frequency
The Resonance parameter is used to further adjust the
characteristics of the filter. Increasing the Resonance
will emphasize frequencies around the cutoff frequency, Filter Frequency
Filter Frequency
making the sound thinner. Further raising the Resonance
will make the sound resonant to a point where the
filter starts to self-oscillate and produce a ringing pitch.
Filter Frequency
Exactly where in the frequency spectrum this "ringing"
occurs, depends on the Frequency value.
Filter Frequency

Freq Mod 1 - LFO

The filter frequency can be controlled by the low frequency oscillator,
the LFO. The Freq Mod 1 knob sets the amount of modulation.
Filter Frequency

Freq Mod 2

This knob governs the amount of the second modulation source to the
Filter Frequency. Set the knob to a position after 12 o'clock, the Mod
Envelope will modulate the Filter Frequency. Set the knob to a position
Filter Frequency
before 12 o'clock to control the Filter Frequency by the velocity of the
keys you play.
Filter Vocal
Filter Frequency

The Envelopes

Filter Frequency
The envelopes are used to "shape the sound" over the period of time,
from when you first play a key, to after it has been released.
Filter Vocal
Filter Frequency
Filter Frequency
Filter Vocal

Mod Envelope

Filter Frequency
Filter Frequency
The Modulation Envelope is a three-stage envelope used
to modulate the tone color over the duration of a note,
e.g. create a bright attack by modulating the filter in the
start of the note. The Mod Envelope has three stages:
Attack
Attack sets the time it should take for the envelope to
reach maximum level after you have pressed a key. Turn
Filter Frequency
the Attack knob clockwise to increase Attack time.
Resonance = 10
Resonance = 7
Chapter 8 Synth | 33
Resonance = 3
Resonance = 0
Filter Frequency
Resonance = 10
Resonance = 7
Resonance = 10
Resonance = 3
Resonance = 0
Resonance = 0
Filter Frequency
Filter Frequency
Resonance = 10
Resonance = 10
Resonance = 10
Resonance = 0 Resonance = 7
Resonance = 0
Filter Frequency
Resonance = 3
Filter Frequency
Resonance = 0
Resonance = 10
Filter Frequency
Resonance = 10
Resonance = 0
Filter Frequency
Resonance = 0
Filter Frequency
Resonance = 10
Resonance = 0
Filter Frequency
Filter Resonance
Filter Resonance
Filter Resonance
Filter Fre
Filter
Filte