iPedia Free Information Center

Information about Korg Oasys

Enlarge picture
Korg OASYS
OASYS by Korg
Synthesis type: PCM, Wave Sequencing, Vector, Physical Modelling,
Sampler, Analog Modelling
Polyphony: 172 for HD-1, CX-3, & PolysixEX; 96 for AL-1;
48 for STR-1 & MS-20EX (all maximum;may vary
depending on other sounding voices and effects)
Timbrality: 16
Oscillators: depends on synthesis engine
Filter: depends on synthesis engine
Keyboard: 76 or 88-key
Left hand control: 2x Joystick, 2x Switch, Ribbon, Karma
Velocity sensitive: yes
Aftertouch: yes
External control: MIDI
Memory: 1GB RAM, upgradable to 2GB. No physical ROM.
Preloaded samples include 314MB "ROM"
(loaded into RAM automatically at startup),
and optionally-loaded 313MB EXs1 "ROM Expansion"
& 503MB EXs2 "Concert Grand Piano."
0MB to 1.5GB available for user samples,
depending on memory configuration and loaded EXs.
Internal 40GB HDD.
Onboard effects: 12 insert, 2 master, 2 total
Produced: 2005 -
Original price: $8000 - $8500
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 is implemented on a custom Linux operating system and is designed to be arbitrarily expandable via software updates, with its functionality limited only by the PC-like hardware.

Features

The standard Oasys comes with a hardware similar to many personal computers: It features Korg's OASYS (acronym for Open Architecture SYnthesis Studio) technology, which allows multiple synthesis engines to be used simultaneously. The OASYS also includes second-generation KARMA technology (with the first generation having first appeared in the Korg KARMA). It has either a 76-key synth-action or 88-key hammer-action keyboard.

Synthesis engines

As of October, 1 2007 the latest version of the OASYS OS is 1.3.0, featuring the following synthesis engines:
  1. HD-1: A PCM synthesizer, with 628 MB of preloaded samples and Wave Sequencing
  2. AL-1: A 96-note polyphonic virtual analog synthesizer (84 notes in previous versions of the OS)
  3. CX-3: A modelled tonewheel organ based on the current CX-3
  4. STR-1: A plucked string physical model
  5. LAC-1: Optional bundle ($250) including two virtual analog synthesizers, the PolysixEX and MS-20EX, which are updated models of the vintage Korg Polysix and Korg MS20.
  6. MOD-7: Combines Variable Phase Modulation (VPM), waveshaping, ring modulation, PCM sample playback, and subtractive synthesis in a patchable, semi-modular synthesizer.

HD-1

HD-1 Program

The HD-1 is a sample+synthesis engine with a two "oscillator" structure. In addition to the two "oscillators," an HD-1 Program contains a Vector Envelope, Common LFO (per-Program as opposed to per-voice, similar to the modulation LFOs in some early polyphonic analog synths), two common key tracking generators, KARMA settings, and effects.

HD-1 Oscillator

Each "oscillator" consists of a sample playback oscillator, dual multimode filter, nonlinear "drive" and low boost section, amp, and pan. The sample playback oscillator has four velocity zones, each of which can play a mono or stereo sample or a Wave Sequence. Velocity zones can overlap or crossfade. Korg claims very low aliasing distortion, due to the use of bandlimited interpolation.

Wave Sequencing

Wave Sequences were first introduced on Korg's Wavestation synthesizer, released in 1990. Wave Sequences allow a single note to play through a list of samples, one after the other, with or without crossfades, with other associated parameters changing for each sample, as listed below. This can create smooth, evolving timbres, or rhythmic effects. Internally, Wave Sequences are implemented by using two voices; voice A plays the first sample, voice B plays the second sample, voice A plays the third sample, and so on. Other synthesizers have featured concepts which are similar in some aspects, such as PPG wavetables, Synclavier resynthesis, and Ensoniq Transwaves and Hyperwaves (see the Ensoniq TS 10).

In the lists below, features new to the OASYS (in comparison to the Wavestation) are noted.

OASYS Wave Sequences include, for each step:
  • The sample to play (mono or stereo)
  • Sample start offset
  • Reverse on/off
  • The length of the step, in milliseconds or rhythmic value
  • The crossfade time into the next step, in milliseconds
  • Crossfade fade-in shape (256 steps, from log to exp)
  • Crossfade fade-out shape (as above)
  • Volume
  • Transpose and fine-tune
  • Two modulation ("AMS") value outputs, to control any modulatable synthesis parameters in the rest of the Program (e.g. filter cutoff or resonance, LFO speeds, etc.)
And, for the sequence as a whole:
  • Time/Tempo mode (determines whether step durations will be in milliseconds or rhythmic values)
  • Run on/off (enables and disables programmed durations and crossfades altogether; modulation from other sources can control the sequence directly)
  • Key sync on/off (determines whether each note's Wave Sequence runs independently, or whether all notes sync together for lock-step rhythms)
  • Swing and swing resolution
  • Quantize Triggers on/off (adjusts note start times to match current KARMA/Sequence)
  • Start step and start step modulation
  • End step
  • Loop start, end, and direction (forwards, backwards/forwards, backwards)
  • Loop repeats
  • Note-on advance (increments the start step for each played note)
  • Position modulation (sweeps through the sequence manually)
  • Duration modulation (changes the step durations)
Differences from the Wavestation


Additions to the original Wavestation implementation include time/tempo modes, sample-locked tempo synch, constant-time crossfades in tempo mode, fade-in and fade-out shapes, swing, trigger quantization and key sync, note advance, realtime duration modulation, control of reverse and sample start point per step, and modulation outputs.

EXi

EXi Program

Stub.

AL-1

Virtual analog synth engine.
  • Two main oscillators with analog-style FM and sync
  • Korg claims proprietary anti-aliasing technology, for no audible aliasing over standard 88-note range, with sync (but with drive and ring-mod off)
  • Waveforms: Saw, Pulse, Saw/Pulse, Double Saw, Detuned Saw 1, Detuned Saw 2, Triangle, Square/Triangle
  • Wave Morph and Pulse Width/Phase/Detune
  • Sub-oscillator
  • Audio input
  • Noise generator with saturation and dedicated filter
  • Ring modulation (Ring Mod, AM, Rectify, Clip)
  • Mixer provides modulatable volume and filter a/b pan for osc 1, osc 2, sub osc/audio input, noise generator, and ring mod
  • Per-voice, modulatable Drive (nonlinear distortion) and Low Boost (low eq)
  • Dual resonant multimode filters, including "multifilter"
  • Multifilter provides two separate sets of gain controls for lp, hp, bp, and dry signals, with modulatable crossfade between the two sets
  • 4 EGs
  • 4 LFOs
  • 2 "AMS Mixers" (modulation signal processors)
  • Per-voice step sequencer

CX-3

Stub.

STR-1

Stub.

MS-20EX

Stub.

PolysixEX

Stub.

MOD-7

The MOD-7 includes six VPM oscillators, plus a PCM oscillator, noise generator, audio input, two multi-mode filters, three 2-in/1-out mixers, and a 6-input main mixer - with a patch panel for routing them together. The MOD-7 is capable of producing classic FM keyboards and bells to rhythmic soundscapes, synth basses, and sparkling, epic pads.

Notable Users

External links

Korg
株式会社コル?

Founded 1962
Founder Tsutomu Kato and Tadashi Osanai
Headquarters Japan

Industry Electronics
Products Keyboards
Website www.korg.com
For comic book character, see .

..... Click the link for more information.
Synthesis (from the ancient Greek σύνθεσις σύν (with) and θεσις
..... Click the link for more information.
Physical modelling synthesis is the synthesis of sound by using a set of equations and algorithms to simulate a physical source of sound. Sound is then generated using parameters that describe the physical materials used in the instrument and the user's interaction with it, for
..... Click the link for more information.
Sampler may mean:
  • Sampler (signal), a digital signal processing device that converts a continuous signal to a discrete signal
  • Sampler (musical instrument), a device used to create digital recordings called samples

..... Click the link for more information.
Analog Modeling Synthesizer, also referred to as Virtual Analog or VA is a synthesizer that emulates the sounds of traditional analog synthesizers using digital signal processing components.
..... Click the link for more information.
Polyphony is the property of an electronic musical instrument which describes how many notes it can sound at one time. An instrument which can produce multiple notes at a time is said to be polyphonic.
..... Click the link for more information.
An electronic musical instrument may be multitimbral, which means it can produce two or more timbres (also called sounds or patches) at the same time. Instruments which may be multitimbral include synthesizers, samplers, and music workstations.
..... Click the link for more information.
''For other uses, see oscillator (disambiguation)
Oscillation is the variation, typically in time, of some measure about a central value (often a point of equilibrium) or between two or more different states.
..... Click the link for more information.
An audio filter is a type of filter used for processing sound signals. Many types of filters exist for applications including graphic equalizers, synthesizers, sound effects, CD players and virtual reality systems.
..... Click the link for more information.
musical keyboard.]] A musical keyboard is the set of adjacent depressible levers on a musical instrument which cause the instrument to produce sounds.

Keyboards almost all share the common layout shown.
..... Click the link for more information.
joystick is a personal computer peripheral or general control device consisting of a handheld stick that pivots about one end and transmits its angle in two or three dimensions to a computer.
..... Click the link for more information.
A ribbon controller is a user interface used to control parameters of electronic musical instruments, primarily used with analogue synthesizers. (See fingerboard synthesizer). A ribbon controller is similar to a touchpad, but a ribbon controller only registers linear motion.
..... Click the link for more information.
MIDI (Musical Instrument Digital Interface; IPA: /ˈmɪdi/) is an industry-standard protocol that enables electronic musical instruments, computers and other equipment to communicate, control and synchronize with each other.
..... Click the link for more information.
Hard disk drive

An IBM hard disk drive with the metal cover removed. The platters are highly reflective.
Date Invented: September 13 1956
Invented By: An IBM team led by Reynold Johnson
Connects to:
..... Click the link for more information.
20th century - 21st century - 22nd century
1970s  1980s  1990s  - 2000s -  2010s  2020s  2030s
2002 2003 2004 - 2005 - 2006 2007 2008

2005 by topic:
News by month
Jan - Feb - Mar - Apr - May - Jun
..... Click the link for more information.
Korg
株式会社コル?

Founded 1962
Founder Tsutomu Kato and Tadashi Osanai
Headquarters Japan

Industry Electronics
Products Keyboards
Website www.korg.com
For comic book character, see .

..... Click the link for more information.
Synthesizer is generally any kind of electronic musical instrument, or electronic device capable of producing or manipulating audio tones, such as musical notes, through audio signal processing.
..... Click the link for more information.
20th century - 21st century - 22nd century
1970s  1980s  1990s  - 2000s -  2010s  2020s  2030s
2002 2003 2004 - 2005 - 2006 2007 2008

2005 by topic:
News by month
Jan - Feb - Mar - Apr - May - Jun
..... Click the link for more information.
Korg Triton is a music workstation synthesizer featuring digital sampling and sequencing created by Korg. All Tritons use Korg's HI Synthesis tone generator. They are available in several models and various upgrade configurations.
..... Click the link for more information.
Linux (pronunciation: IPA: /ˈlɪnʊks/, lin-uks) is a Unix-like computer operating system. Linux is one of the most prominent examples of free software and open source development; its underlying source code can be
..... Click the link for more information.
An operating system (OS) is the software that manages the sharing of the resources of a computer. An operating system processes system data and user input, and responds by allocating and managing tasks and internal system resources as a service to users and programs of the
..... Click the link for more information.
personal computer (PC) is a computer whose original sales price, size, and capabilities make it useful for individuals.

It is unknown who coined the phrase with the intent of a small affordable computing device but John W.
..... Click the link for more information.
personal computer (PC) is a computer whose original sales price, size, and capabilities make it useful for individuals.

It is unknown who coined the phrase with the intent of a small affordable computing device but John W.
..... Click the link for more information.
Pentium 4
Central processing unit

An LGA 775 Pentium 4
Produced: From 2000 to 2008
Manufacturer: Intel
CPU Speeds: 1.3 GHz to 3.
..... Click the link for more information.
central processing unit (CPU), or sometimes simply processor, is the component in a digital computer capable of executing a program.(Knott 1974) It interprets computer program instructions and processes data.
..... Click the link for more information.
Hard disk drive

An IBM hard disk drive with the metal cover removed. The platters are highly reflective.
Date Invented: September 13 1956
Invented By: An IBM team led by Reynold Johnson
Connects to:
..... Click the link for more information.
DDR SDRAM or double-data-rate synchronous dynamic random access memory is a class of memory integrated circuit used in computers. It achieves greater bandwidth than the preceding single-data-rate SDRAM by transferring data on the rising and falling edges of the clock
..... Click the link for more information.
liquid crystal display (commonly abbreviated LCD) is a thin, flat display device made up of any number of color or monochrome pixels arrayed in front of a light source or reflector.
..... Click the link for more information.
Touchscreens are display overlays which have the ability to display and receive information on the same screen. The effect of such overlays allows a display to be used as an input device, removing the keyboard and/or the mouse as the primary input device for interacting with the
..... Click the link for more information.
Acronyms and initialisms are abbreviations, such as NATO, laser, and IBM, that are formed using the initial letters of words or word parts in a phrase or name.
..... Click the link for more information.


This article is copied from an article on Wikipedia.org - the free encyclopedia created and edited by online user community. The text was not checked or edited by anyone on our staff. Although the vast majority of the wikipedia encyclopedia articles provide accurate and timely information please do not assume the accuracy of any particular article. This article is distributed under the terms of GNU Free Documentation License.
Herod_Archelaus


page counter