Upgrade Manual

Appendix A: "Audio Plugins"78
Random:
Randomize the rate, to avoid a mechanical sweeping sound.
Ring Modulator
Ring Modulation is a strange effect, which is best for non-pitched sounds such
as gongs, unusual percussion, and robot voices. Ring Modulation is not very
useful on ordinary melodic or chordal parts.
Ring Modulator is a balanced modulator, or four-quadrant multiplier. Carrier
and Modulator signals are mixed together, and only the sum and difference
frequencies are passed. The original frequencies in each signal are supressed.
Modulator Freq:
Set the frequency of the modulator sine wave.
Modulator Amt:
The amount that the audio (the carrier) is modulated by the
sine wave. At 100%, you get "pure" ring modulation. At lower values, you get
partial ring modulation, which makes gritty sounds that are somewhat
recognizable.
Mix:
The mix between original signal and ring modulated signal. Mix has an
effect similar to the Modulator Amt knob.
Equalizers
The three supplied equalizers have some common features.
EQ Type
Passive EQ
is cut-only EQ, which is the most common type of EQ found on
guitar amplifiers and some studio-quality tube equipment. A band can be cut,
but it cannot be boosted very much. Passive EQ is very gentle tone modification.
Turn the desired bands very high, and cut the bands you don't want.
Active EQ
is the type of EQ found on mixer boards and solid-state rack-mount
equalizers. Unity gain is in the center of knob travel. Each band can be either
boosted or cut by 18 dB.
Peak Limit:
If boosting bands, Equalizer clipping is very likely. If you are
boosting a lot, enable Peak Limit to avoid distortion.
Tone Control
The Tone Control is a basic four band equalizer as commonly found on mixer
strips or guitar amps. It provides gentle tone modification.