Korg RADIAS RACK Analog Modeling Synth Vocoder Mod
nnovative synthesis teamed with remarkable fidelityn
The heart of RADIAS beats with Korg’s cutting-edge MMT (Multi Modeling Technology) synth engine, and borrows much of its modeling techniques from Korg’s flagship OASYS ? eliminating aliasing noise in even the highest frequencies and delivering clean, pure waveforms. RADIAS provides two oscillators for each timbre. Between them, they deliver not only modeled analog waveforms, but also formant waveforms, noise, ring modulation, sync, plus both classic and up-to-date PCM waveforms. When using the analog modeled waveforms, a variety of oscillator modulation algorithms ? including pulse-width modulation, a massive Unison mode, Korg’s proprietary VPM (Variable Phase Modulation) or cross modulation ? can be used to create complex sounds, even from a single oscillator. RADIAS provides a dual-filter structure, allowing the two filters to be used individually, side by side, or in series for maximum versatility. Filter 1 is highlighted by a continuously variable multi-mode filter, embracing Low Pass, High Pass and Band Pass modes ? and new treatments in between. This dual filter arrangement provides a vast range of sounds that would be unimaginable from just a single filter, and opens up new sonic possibilities including some fantastic comb filtering. Three Envelope Generators (EG) are used to apply time-varying changes to the pitch, filter cutoff, and amp level, as well as many other parameters. The classic and intuitive four-stage ADSR design has been enhanced with five different attack and release curves, allowing the EG contours to be crafted with new levels of precision and articulation. Two LFOs are available to apply cyclic changes to a host of synth parameters. Six LFO waveforms are provided, including the popular ?Sample & Hold? stepped wave. Each waveform can be extensively modified via the Shape control, greatly expanding the versatility of the LFO section for creating highly complex types of modulation. Adding Drive can produce the distinctive warmth of a true analog synthesizer and can also distort the sound intensely to generate new overtones. The amount of Drive is dependent on the level of each voice as it enters the mixer, so you can create nuances that cannot be achieved by an external effect unit. RADIAS offers eleven innovative types of Wave shaping ? even recreating the tonal character of an electromagnetic pickup. The Drive/Waveshaping circuit can be placed in different locations in the signal chain, affecting the sound in very meaningful ways. An additional Punch Level setting emphasizes the attack portion of the sound, letting you create sounds with even more impact. Clearly, this is a radical new instrument that is not bound by conventions of the past!
Dynamic modulation station
Three Modulation Sequencers can change a parameter’s value in discreet steps over time, similar to using sequencing control voltages (CV) on analog synthesizers of the past. The value of each step can be edited in real time using the front panel knobs. Each Mod Sequence can be up to sixteen steps long, and each can play forwards, backwards, loop, etc., allowing you to create very detailed filter and panning changes or complex and evolving timbres that build over time. The six virtual patches are modern versions of the patch cords found on Korg’s classic PS and MS series of synthesizers, among other legends of the past. Going beyond the hardwired limits of a normal voice structure, a virtual patch provides a method for freely connecting any of fifteen modulation sources to any of fifteen destinations, accommodating even the most advanced modulation routings. Two audio input jacks and an internal envelope follower allow external audio sources to be processed, to be used as a modulation source, and even trigger the RADIAS. A powerful internal bus structure allows Timbres to be routed to trigger effects, the built-in vocoder, or as modulation sources for the step-
