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24-582: OASYS was a software implementation of the research project that ultimately resulted in the OASYS PCI , a DSP card which offered multiple synthesis engines. The original OASYS keyboard concept had to be scrapped because of excessive production costs and limitations of then-current technology. Production of the OASYS was officially discontinued in April 2009. Korg sold just over 3000 units worldwide. The final software update

48-530: A PCM oscillator, noise generator, audio input, two multi-mode filters, three 2-in/1-out mixers, and an input main mixer – with a patch panel for routing them together. Note: The MOD-7 and PolysixEX/MS-20EX plug-ins are only available from www.korguser.net. Owners must register their Oasys at the site in order to purchase them. This includes providing the Public ID and serial numbers of their unit. Software synthesizer A software synthesizer or softsynth

72-453: A composer or virtual conductor will want a "draft mode" for initial score editing and then use the "production mode" to generate high-quality sound as one gets closer to the final version. The draft mode allows for quicker turn-around, perhaps in real time, but will not have the full quality of the production mode. The draft render is roughly analogous to a wire-frame or "big polygon" animation when creating 3D animation or CGI . Both are based on

96-704: A few early models of the Oasys, the EXB-DI is user installable. As of November 24, 2009 the latest version of the OASYS OS is 1.3.3a, featuring the following synthesis engines: 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. Each "oscillator" consists of

120-442: A given number of smooth bumps at the rim; these generate a specific frequency as the disk rotates close to a pickup assembly that consists of a magnet and electromagnetic coil . As each bump in the wheel approaches the pickup, it temporarily concentrates the magnetic field near it, and thus strengthens the magnetic field that passes through the coil, inducing a current in the coil by the process of electromagnetic induction . As

144-472: 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 band limited interpolation. Wave Sequences were first introduced on Korg's Wavestation synthesizer, released in 1990. Wave Sequences allow

168-613: 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 , Waldorf , and Access Virus wavetables, Synclavier resynthesis, and Ensoniq Transwaves and Hyperwaves (see

192-571: Is a Korg acronym for "EXpansion Sample". They are sample sounds that come pre-loaded with OASYS. EXs-1 is a sample library with acoustic instruments including guitars, brass, piano, strings, beside others. EXs-2 is a grand piano sampled in each key with 4 velocity levels plus damper. The 1G RAM of OASYS only permits to load 1 EXs at a time, but the user can expand it to have both working at the same time. EXs3 ($ 149) includes over 700 MB of brass and woodwind samples, perfect for orchestral and pop productions. Recorded using world-class instruments and players,

216-401: Is a computer program that generates digital audio , usually for music. Computer software that can create sounds or music is not new, but advances in processing speed now allow softsynths to accomplish the same tasks that previously required the dedicated hardware of a conventional synthesizer . Softsynths may be readily interfaced with other music software such as music sequencers typically in

240-456: Is software like Csound and Nyquist , which can be used to program software instruments. Tonewheel A tonewheel or tone wheel is a simple electromechanical apparatus used for generating electric musical notes in electromechanical organ instruments such as the Hammond organ and in telephony to generate audible signals such as ringing tone . It was developed by Thaddeus Cahill for

264-649: 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: And, for the sequence as a whole: Additions to the original Wavestation implementation include time/tempo modes, sample-locked tempo sync, constant-time crossfades in tempo mode, fade-in and fade-out shapes, swing, trigger quantization and key sync, note advance, real-time duration modulation, control of reverse and sample start point per step, and modulation outputs. EXs

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288-746: The Minimoog , the ARP 2600 , as well as the Yamaha CS-80. Gforce produces a Minimoog with sounds designed by Rick Wakeman and version of the ARP Odyssey . Some softsynths are sample -based, and frequently have more capability than hardware units, since computers have fewer restrictions on memory than dedicated hardware synthesizers. Sample libraries may be many gigabytes in size. Some are specifically designed to mimic real-world instruments such as pianos. Sample libraries' formats include .wav , .sf or .sf2 . Often

312-410: The telharmonium c. 1896 and patented in 1897. It was reinvented around 1910 by Rudolph Goldschmidt for use in pre– vacuum-tube radio receivers as a beat frequency oscillator (BFO) to make continuous wave radiotelegraphy ( Morse code ) signals audible. The tonewheel assembly consists of a synchronous AC motor and an associated gearbox that drives a series of rotating disks. Each disk has

336-469: The Hammond organ and in similar situations, where the large number of tonewheels causes pickups to overhear tonewheels other than their own. This causes the organ to add chromatics to played notes. In some kinds of music this is undesirable, but in others it has become an important part of the Hammond sound. On some digital simulations of Hammond organs tonewheel leakage is a user-set parameter. The tonewheel

360-416: The bump moves past, this concentrating effect is reduced again, the magnetic field weakens slightly, and an opposite current is induced in the coil. Thus, the frequency of the current in the coil depends on the speed of rotation of the disk and the number of bumps. Typically, the coil is connected to an amplifier through a network of switches, contacts, resistor banks, and transformers which can be used to mix

384-660: The collection features piccolo, flute, alto flute, clarinet, bass clarinet, oboe, English horn, bassoon, contrabassoon, soprano sax, alto sax, tenor sax, baritone sax, trumpet, piccolo trumpet, cornet, flugelhorn, trombone, French horn, bass tuba, contrabass tuba, dual-trumpets, dual-trombones, and brass ensemble. Designed to be richly expressive, the samples include multiple dynamics, straight and vibrato versions, breathy and overblown tones, legato, staccato, trills, flutter, growl, sforzando, glissando up/down, falls, doits, voice, breath, attack elements, grace notes, and key noise elements. 128 Programs and 64 Combinations take full advantage of

408-613: The context of a digital audio workstation . Softsynths are usually less expensive and can be more portable than dedicated hardware. Softsynths can cover a range of synthesis methods, including subtractive synthesis (including analog modeling , a subtype), FM synthesis (including the similar phase distortion synthesis ), physical modelling synthesis , additive synthesis (including the related resynthesis ), and sample-based synthesis . Many popular hardware synthesizers are no longer manufactured but have been emulated in software. The emulation can even extend to having graphics that model

432-558: The exact placements of the original hardware controls. Some simulators can even import the original sound patches with accuracy that is nearly indistinguishable from the original synthesizer. Popular synthesizers such as the Moog Minimoog , Yamaha DX7 , Korg M1 , Sequential Prophet-5 , Oberheim OB-X , Roland Jupiter 8 , ARP 2600 and dozens of other classics have been recreated in software. Software Synth developers such as Arturia offer virtual editions of analog synths like

456-567: The first generation having first appeared in the Korg KARMA ). It has either a 76 key synth-action, or 88 key hammer-action keyboard. EXB-DI (Digital interface board) The optional EXB-DI adds 8 channels of ADAT Optical format 24-bit 48 kHz digital output, as well as a word clock input. The EXB-DI was first made available for the Korg Triton Studio keyboard and Triton Rack module - on these units only 6 outputs are available via ADAT. Bar

480-401: The fluctuating current representing the note from one coil with similar currents from other coils representing other notes. A single fundamental frequency can thus be combined with one or more harmonics to produce complex sounds. Tonewheels were first developed for and used in the impractical Telharmonium circa 1896 and later in the original Hammond organs . Tonewheel leakage occurs in

504-585: The new sounds. EXi is a Korg acronym for "EXpansion Instrument". It refers to all OASYS synth models other than the HD-1, including the AL-1, CX-3, etc. This is the Program structure for playing EXi. It is similar to that of the HD-1, but differs slightly in a few ways, such as: Virtual analog synth engine. A modeled tonewheel organ based on Korg's dedicated CX-3 organ keyboard. This organ mimics and in many ways enhances

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528-600: The sound of the Hammond organ and Leslie speaker with amplifier simulation and other enhancements. A plucked string physical model that allows you to pluck, strike, scrape, or otherwise "excite" the string with 16 different "pluck" types, noise, or any of the onboard or RAM-based PCM waveforms. The optional LAC-1 Legacy Analog Collection($ 249.00) EXi adds the MS-20EX and PolysixEX virtual analog synthesizers. The MOD-7 ($ 249.00) includes six oscillators which combine simultaneous VPM (aka FM), Waveshaping, and ring modulation, plus

552-452: The trade-off between quality and turn-around time for reviewing drafts and changes. A software instrument can be a synthesized version of a real instrument (like the sounds of a violin or drums ), or a unique instrument, generated by computer software. Software instruments have been made popular by the convergence of synthesizers and computers, as well as sequencing software like GarageBand , Logic Pro , and Ableton Live . Also of note

576-439: Was released on November 24, 2009. In 2011, Korg Kronos , a successor of Korg OASYS, was introduced at that year's NAMM Show . The standard Oasys comes with hardware similar to many personal computers : It features Korg's OASYS ( acronym for O pen A rchitecture SY nthesis S tudio) technology, which allows multiple synthesis engines to be used simultaneously. The OASYS also includes second-generation KARMA technology (with

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