Reverb: The Peavy Deltafex features multiple types of reverb effects. Reverb is the modification of a sound to emulate the sound of playing in an empty space of varying size. "Hall" reverbs emulate playing in gigantic open spaces, like a stadium. Standard reverbs are less pronounced.
Delay: The Deltafex also has "delay" effects, which replay the sound input repeatedly at lower volume each time it is repeated. Delay effects sound like a natural echo. The time between each iteration of the sound can be controlled on the Deltafex interface.
Compression: A compressor narrows the difference between high and low wave volumes. This effect can be especially helpful when recording high-gain sounds, such as heavily distorted guitar.
Pitch Shift: This effect modifies the wavelength of the input sound, increasing wavelength to deepen the sound and decreasing wavelength to heighten the pitch of the sound.
Chorus: This effect plays multiple versions of the input sound to make the sound richer than if it were to come from just one wave. The name "chorus" is appropriate, as this is the principle behind singing in a choir instead of alone.
Distortion: This effect makes the sound "grittier," as though the speakers were failing to produce the sound properly. It is typically used to add warmth to a sound.
Phase: The input sound is played through a slowly changing filter. The sound becomes progressively less clear and later becomes clearer at the same pace. The listener focuses on two aspects, the actual signal and the sweeping frequency change that the signal is undergoing.
Flange: The input signal is played twice, with one of the signals being delayed at a varying speed. This aspect creates a sound that features "peaks and notches" in the frequency.
Tremolo: Tremolo effects follow the same principle as flange effects, but the filter process is much faster.