INSTRUMENTS / GENERATORS

Ogun Synthesis Controls

This section covers the Synthesis controls. Please check the Programming section for more details:

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Main Page

Master Controls

Synthesis Controls

Ogun creates complex waveforms by combining sine-waves of harmonic multiples of the fundamental frequency. Ogun can accurately simulate lush metallic textures by generating up to 32,767 harmonics and offers creative control primarily through the Timbre controls and harmonic EQ curves (Harmonic mappings).

Programming & Resynthesis Tips

To see a list of programming tips see the Tutorial page.

TIMBRE

The Timbre section controls the harmonic spectrum and serves the same purpose as an Oscillator in Subtractive synthesis. In essence, the controls described below change the weighting, or probability, that each harmonic in the spectra will sound. In order to add natural motion to sounds the harmonic spectrum can then be re-shaped by the Harmonic mapping envelopes (see the Articulator section below):

Resynthesis

An easy way to create new and complex timbres is to use the Resynthesis functions on the Options Menu OR samples (.wav) can be dragged from a browser and dropped onto the appropriate target in Ogun (drop samples onto the TIMBRE control panel). NOTE: Ogun can also analyze the volume envelope if the same samples are dropped onto the Volume envelope articulator part.

The resynthesizer engine uses the start of the sample to create a Timbre impulse EQ mapping and the end of the sample to generate a Timbre decay EQ mapping. When these maps are multiplied by the full spectrum (note Seed 1 = '----') and by morphing from the impulse to decay harmonic mappings (under the control of the DECay slider), the approximate harmonic motion of the input sample is replicated.

Rules

UNISON

Unison is an effect similar to Chorus. Unison differs in that the effect is applied per-key (per voice). Multiple copies of each voice are detuned and panned to create a thicker audio texture.

FILTER

Articulator Editor

The Articulator editor panel provides access to the full suite of modulation parameters in Ogun. Select the Modulation Target and the Articulation Part (modulation source). Depending on the Modulation Target there will be a number of Articulation Parts as shown below:

Envelope and LFO display time on the horizontal axis and relative value on the vertical axis.

Note that the ATT, DEC, SUS and REL knobs make RELATIVE changes to the ADSR envelope, snapping back after release. While the envelope will appear as it did prior to the change, the envelope will sound according to the relative changes made (as seen in the Hint Bar while the knob is adjusted). Right-clicking the nodes will give options, in particular Sustain loop start & Sustain loop end points can be set to loop the envelope during the sustain action. LFO waveform: The waveform is represented by the light blue line, not the red control lines, these are used to shape the LFO waveform.

Mapping displays the input value on the horizontal axis and relative output value on the vertical axis.

All envelopes are fully user-adjustable. Right-clicking the nodes will show edit options. Node controls (relevant to all Articulation parts) change the behavior of the node movement and placement. Note that Snap will force nodes to snap to the Map grid. Clicking and dragging with Step mode on will drop nodes at each grid line crossed (shift in this mode will create steps).


The Editor Targets (modulation targets) and Articulation parts (modulation sources) are as follows:

The following controls can be found along the bottom of the Editor window, depending on the Articulation part selected.

Envelope

LFO

Other controls:

Effects Controls

Programming Ogun

Plugin Credits -


Code & GUI: Didier Dambrin.