The

Korg , founded as Keio Electronic Laboratories, is a Japanese multinational corporation that manufactures electronic musical instrument An electronic musical instrument or electrophone is a musical instrument that produces sound using electr ...

RADIAS is a

virtual analog synthesizer An analog modeling synthesizer is a synthesizer that generates the sounds of traditional analog synthesizers using digital signal processing components and software algorithms. Analog modeling synthesizers simulate the behavior of the original elec ...

and

Vocoder A vocoder (, a portmanteau of ''vo''ice and en''coder'') is a category of speech coding that analyzes and synthesizes the human voice signal for audio data compression, multiplexing, voice encryption or voice transformation. The vocoder wa ...

, released by Korg in 2006. The RADIAS' MMT (Multiple Modelling Technology) engine was based on the

Korg OASYS The Korg OASYS is a workstation synthesizer released in early 2005, 1 year after the successful Korg Triton Extreme. Unlike the Triton series, the OASYS uses a custom Linux operating system that was designed to be arbitrarily expandable via softw ...

synthesizer module, providing for several different synthesis methods, two of which may be combined in a single voice e.g. phase distortion synthesis can be combined with

subtractive synthesis Subtractive synthesis is a method of sound synthesis in which Harmonic_series_(music)#Partial.2C_harmonic.2C_fundamental.2C_inharmonicity.2C_and_overtone, overtones of an audio signal are attenuated by a audio filter, filter to alter the timbre of ...

. The different synthesis methods employed by MMT represent the majority of methods used historically in other Korg synthesizers:

digital waveguide synthesis Digital waveguide synthesis is the synthesis of audio using a digital waveguide. Digital waveguides are efficient computational models for physical media through which acoustic waves propagate. For this reason, digital waveguides constitute a ...

Korg first used in the Korg Z1 and phase distortion synthesis was first used in the Korg DS-8. This flexibility allows for very realistic emulations of past Korg synthesizers (both digital and analog), though stays away from trying to emulate the

Korg M1 The Korg M1 is a synthesizer and music workstation manufactured by Korg from 1988 to 1995. It is one of the bestselling synthesizers in history, selling an estimated 250,000 units. The M1 was widely used in popular music and stock music in the ...

and the

Korg Wavestation The Korg Wavestation is a vector synthesis synthesizer first produced in the early 1990s and later re-released as a software synthesizer in 2004. Its primary innovation was Wave Sequencing, a method of multi-timbral sound generation in which di ...

, (these synthesizers used

Pulse-code modulation Pulse-code modulation (PCM) is a method used to digitally represent analog signals. It is the standard form of digital audio in computers, compact discs, digital telephony and other digital audio applications. In a PCM stream, the amplitud ...

Sample-based synthesis Sample-based synthesis is a form of audio synthesis that can be contrasted to either subtractive synthesis or additive synthesis. The principal difference with sample-based synthesis is that the seed waveforms are sampled sounds or instrument ...

and Wave sequencing/ vector synthesis respectively, something that MMT does not emulate). As well as using the in-built waveforms (digital & analog emulations) for the basis of sound creation, the RADIAS allows for the input of an external signal which may be routed through the various sound shaping devices (filters / pitch envelopes etc.). The RADIAS has a comprehensive matrix modulation specification and to further enhance a sound the 'Wave Shaper' module allows for various sound distortion effects. A 16-band

vocoder A vocoder (, a portmanteau of ''vo''ice and en''coder'') is a category of speech coding that analyzes and synthesizes the human voice signal for audio data compression, multiplexing, voice encryption or voice transformation. The vocoder wa ...

with Formant Shift function is also available. RADIAS also takes advantage of KKS Korg Komponent System which allows the user to detach the RADIAS-R module from the dedicated RADIAS-KB keyboard. The RADIAS-R module could be bought separately but the keyboard can not. The RADIAS-R module can be installed on the M3-73 or M3-88 and played simultaneously with the Korg M3 module using the M3's keyboard. SuperSaw waveforms and Unison mode, the RADIAS has the ability to stack up to five waveforms in one oscillator, using only one voice of polyphony. Also, there is an additional unison mode, which can stack five waveforms, but uses additional voices. These modes can be used in conjunction with each other. Doing allows the user to create up to 25 "Super waveforms" (SuperSaws, but also super triangles, sines and squares). All these functions with 24-voice capability are accomplished on two TMS320VC5502 DSP chips from Texas Instruments. Each DSP chip has up to 600 Millions Multiply-Accumulates Per Second with 16bit fixed point. Which is not to be confused with the audio interface that is a 24 bit processor. In 2007, Korg released a slimmed down, three octave version of the Radias synthesizer with fewer features called the R3.

Radias Features

A dual filter, which not only allows you to use two filters in various configurations for each timbre, but also to "morph" different filter types. Formant Motion Record allows recording spoken phrases and then trigger them with the keyboard using

function. A Modulation Sequencer, a "virtual analog sequencer" that mimics analog sequencing, 3 * 16 step. Virtual Patching, originally developed on the Korg MS2000, six "virtual patches" allow any of 15 modulation sources to be routed to any of 15 modulateable parameters.

Notable users

* J.R. Rotem *

Sandy Vee Sandy Julien Wilhelm (; born 22 April 1975), better known by his stage name Sandy Vee, is a French music producer, DJ and songwriter. He gained much commercial and critical recognition for co-producing Rihanna's " Only Girl (In the World)", Katy ...

Ferry Corsten Ferry Corsten OON (; born 4 December 1973) is a Dutch DJ, record producer and remixer. He is well known for producing many pioneering trance tracks during the 1990s–2000s under his numerous aliases, including System F, Moonman, Pulp Victim an ...

Tangerine Dream Tangerine Dream is a German electronic music band founded in 1967 by Edgar Froese. The group has seen many personnel changes over the years, with Froese the only constant member until his death in January 2015. The best-known lineup of the grou ...

Equipment used of late
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References

External links

Korg RADIAS official support siteMusicradar review
{{Portal bar, Electronics, Music, border=yes RADIAS Virtual analog synthesizers Polyphonic synthesizers

Radias Features

Notable users

References

Further reading

External links