AL-1 Analog Synth
The first OASYS EXi Expansion Instrument is a state-of-the-art virtual analog synth engine: the AL-1.

AL-1 Main Play Page
Not content with a mere handful of modeled voices, the AL-1 delivers an unparalleled 84 notes of polyphony, capable of sounding an incredible 504 oscillators (including dual sawtooths and noise generators).
This responsive synth features our distinctive ultra low-aliasing oscillators that recreate all the power and glory of true analog synthesis – without the artifacts that can often plague lesser modeled oscillators. The two main oscillators offer eight flexible waveforms each, for a wide palette of modulatable shapes.

AL-1 Waveform Choices
Other progressive features include wave-shape morphing, a floor-thumping sub-oscillator plus a variable-color noise generator capable of white, pink, red flavors - and beyond.
An adjustable drive parameter provides a distinctive character to the vintage oscillator modeling; while sync, FM, low-boost and several varieties of ring modulation offer plenty of tone-mangling power. External live audio can even be accessed as an additional signal source.
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. The unique “Reso Bass” parameter lets you select between the distinctive resonance characteristics of two classic analog synths — now available within the AL-1’s much more versatile filter structure.

AL-1 Filter Page
The AL-1 also offers a unique MultiFilter, which lets you crossfade in real-time between any two of 21 different filter types – including your own custom mixes of LP, HP, BP and dry input.

AL-1 Filter Page
Modulation is essential to any analog synth, and the AL-1 offers a wealth of riches.
Five punchy and re-triggerable envelope generators can dish out ultra-fast attacks, and a different curvature can be set for each envelope stage. A generous 18 wave shapes are available to drive the four per-voice LFOs. In addition to their tempo-sync and high speed abilities, each LFO allows you to specify the phase, center value, and curve for complete control. And to keep all the voices moving together, there’s an additional per-timbre Common LFO.
Additional modulation capabilities are provided by 52 Alternate Modulation Sources (AMS); dual AMS Mod Mixers; dual key-tracking generators; and a per-voice 32-step Step Sequencer.

AMS Mixer Types

AL-1 Step Sequencer
The per-voice Step Sequencer can modulate virtually any Program parameter – including pitch. Each of the 32 steps has a separate note-length for creating complex rhythmic figures, and can generate either a fixed value or gate an AMS input source. A “smoothing” parameter allows fluid motion between sequencer steps. The standard EXi Program structure adds even more modulation power, including a Common Step Sequencer, two more key tracking generators, and the Vector Envelope.
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
