Synthesis
The microKORG uses DSP technology to emulate the sounds of an analog synthesizer using firmware. The fundamental unit of sound is, in Korg's terminology, a "timbre". This is generated with a pair of multi-function oscillators. Two timbres can be combined to create a four-oscillator "layer". This can be used to create more complex sounds, although it halves the polyphony from four notes to two. A single timbre can be played in four-voice. Oscillator one (OSC1) can produce one of several fundamental waveforms, including saw, square, triangle, and sine waves. Alternatively, OSC1 can produce a vox wave (for simulating human vocal cords), white noise, and one of 64 different digital waveforms that were created by harmonic additive synthesis. Some of these 64 waveforms were originally featured in the Korg DW-8000 digital synthesizer of the late 1980s. The second oscillator (OSC2) is limited to saw, square, and triangle waveforms.
Each waveform on OSC1 has a unique modulation feature, including wave morphing, Pulse-width modulation, and FM. OSC2 can be detuned, synchronized, and/or ring-modulated with OSC1 in order to create more complex sounds. OSC1 can also be replaced with the signal from one of the line-level inputs on the back of the unit, allowing external signals to be processed with the effects and filters of the microKORG, or potentially ring-modulated by OSC2.
The microKORG also uses effects such as flange, ensemble, phaser, and digital delay, which can also be applied to external signals. The unit also features two independent LFOs, with six different waveforms, which can be used to create more complex modulations.
When playing a single timbre the keyboard has four-voice polyphony. In layer mode it generally has two-voice polyphony, although one combination of polyphonic/mono layers allows for three-voice polyphony of the second timbre.
The microKORG groups its 128 factory preset sound patches into 8 groups:
- Trance
- Techno/House
- Electronica
- D'n'B/Breaks
- Hip hop/Vintage
- Retro
- Special Effects/Hit
- Vocoder
A large knob changes the selected sound group. Each group has 16 different patches (2 banks of 8), selected by the 8 lighted buttons on the front with a side A/B button to toggle between sets of 8. All patches are user editable, and do not necessarily have to follow the groupings listed on the face plate.
Samples of microKORG sound: Ring X-Mod, Star Sky, Alien World, Crystal, custom patches, and Trance (microKORG internal demo song).
Read more about this topic: Micro KORG
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