Operation Manual

Parameters 19
4 Parameters
This section can be used as a reference on the different controls appearing on Chromaphone’s
graphical interface. We begin by describing the behavior of the different types of controls appear-
ing on the interface and follow with general notions of acoustics which allow for a better under-
standing of the parameters of Chromaphone. We then describe the parameters of each module of
the synthesizer.
4.1 General Functioning of the Interface
4.1.1 Knobs and Sliders
The synthesizer parameters are adjusted using controls such as knobs, sliders and numerical dis-
plays. A specific control is selected by clicking on it. A coarse adjustment is obtained by click-
holding the parameter and moving the mouse (or the finger on a track pad) either upwards and
downwards or leftwards and rightwards. The value of the parameter replaces its label while it is
being adjusted.
Fine adjustment of a control is obtained by holding down a modifier key of the computer
keyboard (Shift, Ctrl, Command or Alt key) while adjusting the parameter.
4.1.2 Switches
Switches are turned On or Off by clicking on them. They are used to activate or deactivate modules
and the sync feature of some parameters. Note that when modules are switched Off, all their
controls and labels are greyed.
4.1.3 Drop-down Menus
Clicking on a display with a small down-pointing triangle on its right reveals a drop-down menu
with a set of possible settings for the control. Adjustment of the control is obtained by clicking on
a selection or using the left and right arrows which appear once the control is selected.
4.1.4 Modulation of Parameters
Some parameters of the synthesizer can be modulated by different signals. The modulation controls
appear as colored dots below or next to their corresponding parameter. Modulations sources include
the MIDI pitch, velocity and Modulation Wheel signal (Key, Vel and MW labels), the signal from
the Noise Envelope and LFO modules (Env and LFO labels), as well as a random signal (RDM
label).