HD-1 High Definition Synth
HD-1 Main Play Page
It all begins with sound. OASYS delivers a level of realism, fidelity and sound quality that is a milestone for a professional musical instrument. When first purchased, OASYS contains four complete synthesis engine algorithms for your audio palette:
• HD-1 High Definition PCM synth plus three EXi Expansion Instruments,
• AL-1 Analog Modeling Synth
• CX-3 Modeled Tonewheel Organ, and
• STR-1 Plucked String
Plus, there are three optional EXi Expansion Instruments that can be added
(MS-20EX, PolysixEX, MOD-7).
OASYS is built around our flagship PCM-based engine, which we call the call the HD-1 High Definition Synthesizer.
Driven by an exacting, robust and detail-rich voice architecture, the sound of the HD-1 possesses an amazing clarity and presence; a high end that is crystal clear, detailed and accurate sound that is smooth and rich across the entire audio spectrum.
Fueling this engine is a staggering 628 MB of uncompressed wave ROM (including the preloaded EXs-1 expansion) that goes beyond CD audio quality. This abundant PCM library allows us to capture much more of the natural detail and ornamentation that distinguishes an acoustic instrument as “real” sounding. We’ve also included many stereo waveforms to preserve the natural imaging and spaciousness of acoustic sounds - especially ensemble sounds and drum kits. Other enhancements include many extended length samples that preserve an instrument’s natural decay, and sample sets that allow instruments to speak their full voice, using up to 4-way velocity switching to recreate their complete dynamic range.
4-Way Velocity Switched Stereo Samples
But that’s just the beginning. Each OASYS comes with two additional EXs Expansion Sample Libraries ready for action.
The comprehensive EXs-1 Expansion ROM set is pre-loaded, providing spectacular stereo drums, and additional large acoustic and synthesizer multisamples capturing extra detail and character. The EXs-2 Concert Grand, on the other hand, serves up a singular, breathtaking piano experience. Based on individually sampled keys, true stereo imaging, four-way velocity switching and an additional damper layer, this piano evokes unparalleled realism.
The HD-1design surpasses Korg’s previous PCM-based synth architectures. The new low-aliasing oscillators can playback stereo samples, and offer 4-way velocity switching with cross-fading available. A single oscillator can even layer two samples together so you can play up to four stereo samples at the same time from within a Program.
Each voice can use either one or two of Korg’s incredibly versatile multimode (Low Pass, Band Pass, Band Reject [notch], and High Pass) resonant filters. For maximum flexibility, the filters can be connected in series or parallel, to generate 12 dB or 24 dB per octave slopes.
HD-1 Filter
The five punchy Envelope Generators offer adjustable curvature per stage, as well as the ability to be re-triggered by any of the available modulation sources. The four per-voice LFOs and the Common LFO all offer a generous 18 wave shapes, tempo-sync, super-fast rates and more. The Amp section sports a room-shaking Low Boost parameter as well as Drive, for adding aggressive character and side-band harmonics to your sounds. There’s even a 3-band EQ built into the voice so you can sculpt your timbre without having to use an Insert effect.
18 LFO Waveforms
Per-Timbre 3 Band EQ
Another feature in the HD-1 is the dual AMS Mod Mixers. This powerful function lets you process or combine one or two modulation sources before using them to affect a parameter in the voice. You can combine two sources by simply summing them together, or by modulating one with the other. You can also smooth a source’s response time, with separate attack and release settings (like the classic lag processing found on some of the most beloved analog synths), quantize a controller (great for simulating the frets on a guitar, for example), alter its curvature (to create new LFO shapes or alter controller response), and more. With two Mod Mixers available, this greatly expands and enhances the sound shaping potential of the HD-1 synthesizer
AMS Mixer Types
A drumkit can have a different sound on every key, each comprised of up to four velocity-switched, cross-faded, or layered samples. For the first time in a Korg product the samples can be stereo, which adds a lot to the realistic imaging of the sounds. Drumkits are set up in Global Mode, and then in Program Mode can benefit from the rest of the features of the HD-1 voice and effects.
DrumKit 4-Way Velocity Switched Stereo Samples
Each sample offers filter cutoff, resonance, drive and low-boost offsets, as well as individual 3-band EQ. With this type of per-sample control you can create incredibly expressive, perfectly-shaped drumkits. Essential features like exclusive note groups, where one key can cut off another (like a closed hi-hat shutting off the open one) are included, along with per key-assignment routing to the effects.
Please note: Cosmetic and Technical specifications are subject to change without notice
Demo Songs
Ben's Brains for Joe Z. (Mp3, 8.5 Mb)
Ben's Brains uses the HD-1, CX-3, AL-1 and STR-1 engines.
by Ben Dowling
www.bendowling.com
© 2007 Visionsound Music
www.visionsound.com
All rights reserved
Red Square Sinfonietta (mp3, 5.51MB)
by Peter Schwartz
(c) 2005 Peter Schwartz
all rights reserved
This demo blends real instruments with onboard OASYS sounds to show the benefits of using both MIDI and audio recording. The audio tracks are the piccolo, flute, alto flute, oboe, english horn and viola.
Love Embraces All (mp3, 6.10MB)
by Ben Dowling
www.bendowling.com
© 2007 Visionsound Music
www.visionsound.com
All rights reserved
Teknosis (mp3, 11.3MB)
by Peter Schwartz
(c) 2005 Peter Schwartz
all rights reserved
All parts are internal OASYS sounds.
Heaven (320 bitrate) (15.1 MB, mp3)
by Andreas Gundlach
(c) 2006 Andreas Gundlach
all rights reserved
This demo is part of a CD released in Germany by Korg & More to showcase the OASYS. Everything on the demo came from a single OASYS. It is presented in two resolutions in consideration for your Internet connection speed. For the lower resolution version (192 bitrate), click here (mp3, 8.66MB).
A few production notes:
The piano is the EXs-2 Piano (503 MB), slightly edited to suit Andreas’ touch (velocity curve) and taste (filter response).
The drums were played live into the sequencer from the EXs-1 Studio-Standard Kit (I-E 004), again edited slightly to match how Andreas likes to map drum sounds for playing live (some small mistakes were edited out later, of course!).
The percussion part in the middle was generated by KARMA, then resampled and laid back into the track as an audio loop.
For more info (in German) about the CD, click here.
More Audio Demos at