1.3. Hierarchy

In order to get the most out of your H9000, please familiarize yourself with the four main terms below, which represent the “hierarchy” used in the product:

1.3.1. Session

A Session is the highest level on the H9000 hierarchy. Session presets save the entire state of the product at any given moment, including:

  1. The currently loaded FX chains:

    • Parameters within the FX chains.

    • Routing assignments within the FX chains.

  2. Routing information external to each FX chain, including:

    • Physical I/O of each FX chain container.

    • Direct I/O connections made between physical I/O.

    • Additional input/output gain settings for each I/O channel routed to/from the FX chain.

  3. The current state of the global settings:

    • All the settings found in the Setup mode (these can be excluded by category when loading).

    • All the Scene Maps found in Scenes mode, along with current active map index.

    • LED meter mappings.

    • The state of Global Mute/Bypass.

    • Metadata (Name and ID are the most relevant to the user).

1.3.2. FX Chain

The H9000 allows you to chain up to four algorithms together into a custom FX Chain. The FX chain is fed by audio inputs, then the audio is routed through up to four algorithms, and then finally to audio outputs.

You are free to decide which algorithms are included in the FX chain, the order in which they process the audio, and even determine aspects such as separate parallel and series audio paths.

FX Chain presets save:

  • Everything contained within each algorithm preset for all the algorithms present in the FX chain.

  • General parameter values related to the entire FX chain container (mix, mute/bypass, input/output gains).

  • Additional mappings of these FX chain parameters to MIDI controllers.

  • All routing information internal to the FX chain (from the FX chain inputs, to/between algorithm containers, to the FX chain outputs). No physical I/O information is included.

  • Function values, as well as mappings of the actual Function knobs to external controllers.

  • Metadata (Name and ID are the most relevant to the user).

1.3.3. Algorithm

Over many years, Eventide has created a vast library of audio processing routines, which exist as effects processing “modules”. Some of these are simple, such as a low pass filter, a limiter, a compressor, etc., while others are more complex, such as an FFT or a reverb network.

An Algorithm in the H9000 is a combination of some of these modules, and of certain variable values associated with the modules that make up that algorithm. The designer of the algorithm might choose to set some variables of some modules to a specific value that cannot be changed by the user, while allowing that user to change the values of other variables.

The algorithms are the H9000’s “secret sauce”, with specific effects parameters that are adjustable by you, the user. The members of the H9000 Family each have well over one thousand five hundred algorithms, covering the whole range of audio effects.

Algorithm Presets save:

  • Algorithm-related parameter values.

  • General parameter values related to the algorithm container (mix, mute/bypass, input/output gains).

  • Mappings of parameters to external controllers and Functions.

  • Assorted metadata (Name and ID are the most relevant to the user).

1.3.4. Parameter

Parameters are the individual adjustments you can make within an algorithm (or FX chain). On the H9000, when you navigate to a specific algorithm you are presented with its specific parameters, which you can adjust.

A parameter might control one variable of one underlying processing module, or it may control several variables of several modules. Some parameters may be adjustable, whereas for others the designer may choose to set some of the underlying variables to a fixed value and not bring them out to the user of the effect.

For example, a reverb algorithm would present you with settings such as reverb time, room size, decay time, etc. In contrast, a guitar amp emulator might offer parameters such as gain, low/mid/high EQ, etc.