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HD-1 Overview
The HD-1 High Definition Synthesizer is Korg's new
flagship PCM synthesis engine, featuring outstanding
sound quality, unique sound-design tools, and a rich
array of modulation possibilities, including:
• Ultra-high-quality sample interpolation, based on
new, proprietary technology, for minimal aliasing
and crystal-clear high frequencies
• Over a gigabyte of ROM and EXs sample libraries,
using only uncompressed PCM
• Dual-OSC structure, providing two complete voice
chains for layers and splits
• Within each OSC, up to four-way velocity splits
and crossfades (including two-way layers)
HD-1 Program Structure
HD-1 OSC Structure
Pitch EG
Osc
Program mode: HD-1
Common
LFO
OSC1
OSC2
LFO 1
Filter
Filter EG
Key Track
Serial/
Parallel
Filter A
Filter B
Serial/
Parallel
• Wave Sequencing, for creating rhythmic patterns or
complex, evolving timbres
• Vector Synthesis
• Dual multi-mode resonant filters
• Drive and Low Boost, for adding per-voice grit,
girth and distortion
• Three envelopes, two LFOs, and two AMS Mixers
per OSC, plus a common LFO, Vector envelope,
and KARMA for the Program as a whole
• Two complex key tracking generators per OSC,
plus two more for the Program as a whole
• Extensive real-time modulation capabilities
Vector
KARMA
Mixer
& EQ
AMS
LFO 2
Mixer 1
Mixer 2
Amp
EG
+
Drive
Key
Track 1
2
Effects
AMS
Amp
Key Track
Amp
OSC1
OSC2
1
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