Overview - Chapter 3

Resonator

A resonator is a special filter whose response is so sharp that it actually imparts a pitch to any signal going through it. By tuning the resonator to your instrument and balancing their relative amplitudes you can accentuate different harmonics in a guitar tone, for instance. This can be very useful to dramatically change the character of an instrumentÕs sound.

Mono/Stereo Tremolo

The Mono Tremolo modulates the amplitude of its input signal according to three parameters: speed, which controls how often the sound changes amplitude; depth, controlling how strong the tremolos will be; and shape, which controls whether the amplitude transitions will be hard (drastic) or soft (gradual). Mono tremolo can recreate the sound of older guitar amps.

Stereo Tremolo alternates the loudness of the signal in opposite channels according to the same three parameters as the Mono Tremolo effect. On slow speeds with a soft shape, stereo tremolo provides continuous automated panning. At low to moderate depths and moderate speeds, the vibrating sound of traditional electric pianos can easily be reproduced.

Stereo Simulator

This effect is useful for ÒwideningÓ a flat sound to produce a wider stereo field. It takes a mono sound source and creates the illusion that sound is emanating in stereo from a pair of speakers placed somewhere around the listener. By doing so, the sound appears spatially distributed, and takes on a lively new ambiance. When placed at 0 degrees, there is virtually no effect. At 90 degrees, there is an illusion that the speakers are on either side of the listener. At 99 degrees, the sound appears to come from slightly behind the listenerÕs head.

Perceived Speaker Placement

0°

45°

45°

90°

90°

99° 99°

Listener

Q20 Reference Manual

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