OC-D2

size 15.1 MB

OC-D2 is an octaver plug-in that generates a signal one and/or two octaves below the original.
It’s based on the popular Boss OC-2 pedal, but with many more features and customizability far beyond what other octavers offer. It’s unique from the Boss and other pedals, and other octaver plug-ins, in that it offers:

Controls to all the typically fixed values for low-pass filters
Both on oscillator outputs (changes tone from full square wave to pure sine, or anywhere in between) as well as on the detection circuit (which can fine-tune the accuracy of the octave-divider’s tracking).
Option for two modes of operation: additive oscillators or phase-multiplier. The additive mode simply mixes in the octave down signals (via user-adjustable levels and wet/dry balance), whereas the phase-multiplier mode flips the phase of the key signal, following the state of the selected oscillator.
In additive mode, dynamics for the oscillators can be controlled either by a noise gate or an envelope follower, both keyed off the input signal. In phase-multiplier mode, the full dynamics of the key signal are retained.
A DC-offset switch corrects the input signal to improve tracking on rectified or offset signals.
A scope displays both the key signal and the output signal, so the use can see how the plug-in is operating, and help identify what controls need to be adjusted in order to track more accurately or produce the intended sound. Includes a “tuning” control to affect the zoom ratio.
“Listen” radio buttons allow the user to tap the audio at any stage to hear what’s happening behind the scenes, and bypass certain sections if desired.
Many users of the Boss OC-2 pedal seek to add a hardware modification that disables the output filter and dynamics sections in order to produce a more synth-like tone. This plug-in has the capability to easily reproduce this mod, by adjusting only a few parameters. Included are some presets that run through the capabilities of the plug-in.

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