Reference Manual
CHAPTER 22. LIVE INSTRUMENT REFERENCE 305
Filter Type Lowpass, bandpass and highpass are second order lters with resonance. Their
names imply the part of the spectrum they affect. The notch lter passes everything apart
from its center frequency and is more audible with low resonance settings. The 24 dB lter
modes attenuate the ltered frequencies to a much greater degree than the 12 dB modes.
Filter Frequency (Freq) This denes the center or cutoff frequency of the lter. Note that
the resulting frequency may also be modulated by note velocity and by the lter envelope.
Filter Resonance (Res) This denes the resonance around the lter frequency of the lowpass
and highpass lters, and the width of the bandpass and notch lters.
Filter Frequency<Velocity (Freq<Vel) Filter frequency is modulated by note velocity ac-
cording to this setting.
Filter Frequency<Key (Freq<Key) Filter frequency is modulated by note pitch according
to this setting. A value of 100% means that the frequency doubles per octave. The center
point for this function is C3.
Filter Envelope Rates<Velocity (Time<Vel) This parameter exists for lter, pitch, LFO and
volume envelopes. It is therefore listed in the section on envelopes.
Filter Frequency<Envelope (Envelope) Filter frequency is modulated by the lter envelope
according to this setting. A value of 100% means that the envelope can create a maximum
frequency shift of approximately 9 octaves.
LFO Shell and Display
LFO On This turns the LFO (low-frequency oscillator) on and off. Turning it off when it is
unused saves some CPU power.
LFO Waveform Select from among several typical LFO waveforms. Sample and Hold
creates random steps, and Noise supplies bandpass-ltered noise. All waveforms are band-
limited to avoid unwanted clicks. Cyclic waveforms restart with each note-on message.
LFO Range The LFO covers an extreme frequency range. Choose Low for a range from 50
seconds to 30 Hz, or Hi for 8 Hz to 12 kHz. Due to the possible high frequencies, the LFO
can also function as a fth oscillator.