A Program is the primary multi-effect component of the H90. The H90 runs one Program at a time, and
each Program runs any two of the available Algorithms, each of which can be routed in a variety of ways.
Switching between Programs is instantaneous, and features spillover, which allows the previous
Program’s reverb/delay tail to decay naturally when another Program is loaded.
Fig. 4.3 Program Select Mode displaying the Clean Ambient Program
4.3. Algorithm
An Algorithm is an Eventide-designed audio processing module, with carefully chosen parameters. Each
parameter may be adjusted and mapped (Section 6.4) to Footswitches, knobs, expression pedals, and
MIDI. The Algorithm Guide provides in-depth descriptions of each Algorithm.
Fig. 4.4 Algorithms are categorized by Effect Type. Each Effect Type has a signature icon.
4.4. Preset
A Preset is an Algorithm with a unique combination of parameter values that can be saved to the Preset
Library, or within a Program.
4. TERMINOLOGY