Table of Contents H9 - Algorithms and Their Parameters Name in H9 Control Name in Pedal Description Algorithms are the basis for all of H9’s Presets. Each algorithm employs a unique signal processing structure to achieve its effect and each algorithm has a unique set of control parameters associated with it. The H9 can be loaded with over 50 algorithms taken from Eventide’s family of stompboxes as well as some algorithms created specifically for the H9. Algorithm and parameter names have been customized to accommodate the H9’s six character display. In this document, displayed characters on the stompboxes 6 character LED display are indicated in brackets [XXXXXX]. The algorithms are grouped by stompbox lineage: Space, PitchFactor, ModFactor and TimeFactor plus algorithms new for the H9. One of the purposes of this document is to help users create and tweak presets. If you do a lot of that sort of thing, you’ll find the H9, with its one knob, six character display and a few switches, a bit restrictive. From the start, the H9 was designed with the intent of pairing it with a rich remote control app. That’s H9 Control: Our free app for iPhone/iPad, Android, macOS and Windows. H9 Control can connect via Bluetooth or USB to your H9. If you’re doing lots of tweaking or creating presets, we urge you to try out H9 Control as it can greatly simplify the process of creating and managing presets. All algorithms have a Performance Switch which gives you the ability to instantly change the sound of the effect using a MIDI CC, Auxiliary Switch or H9 Control. The function of the Performance Switch depends on the algorithm. In H9 Control the Performance Switch is the middle button at the bottom of an algorithm's control interface. Most time-based parameters, such as delay, change their displayed values as Tempo mode is turned On or Off. When Tempo is On, the parameter is a note value, such as 1/4 note, that is a tempo-synced division of the beats per minute (BPM). When Tempo is Off, the parameter is either (a) time in seconds or milliseconds or (b) frequency in Hz. In some cases changing one parameter may affect the displayed values of other parameters. For example the Chorus algorithm has four types, Liquid Chorus, Organic, Shimmer and Classic, and switching between the different chorus types affects the functions of the other parameters. There is more information about the relationships between various parameters in the documentation for each algorithm.