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HD-1 Overview
Flagship sampling & Wave Sequencing
synth
We named the HD-1 "High Definition" because of its
superior sound, starting with Korg's proprietary low-aliasing
sample playback oscillators, full-bandwidth multimode
resonant filters, and extraordinarily fast & smooth envelopes
and LFOs.
Virtual Memory Technology (VMT) gives the HD-1 access
to gigabytes of onboard samples covering every "meat and
potatoes" sound in exquisite detail, from orchestral to classic
rock to hip-hop, all instantly available.
Wave Sequencing
Wave Sequences play a series of samples over time, creating
distinctive rhythmic timbres or smooth, complex evolving
sounds. Additionally, step-sequencer-style modulation
outputs allow Wave Sequences to control any modulatable
Program parameter.
In the HD-1, Wave Sequences can be used interchangeably
with standard Multisamples. Wave Sequences are edited in
GLOBAL mode; for more information, see "GLOBAL >
Wave Sequence" on page 662.
HD-1 Program Structure
HD-1 OSC Structure
PROGRAM mode: HD-1
Common
LFO
OSC1
OSC2
LFO 1
Pitch EG
Filter EG
Key Track
Filter A
Osc
Filter B
Serial/
Parallel
Main Features
• Korg's proprietary ultra-high-quality sample
interpolation provides minimal aliasing, crystal-clear
high frequencies, and sound that is smooth, rich, and
detailed across the entire audio spectrum.
• Gigabytes of ROM and EXs sample libraries
• User Sample Banks allow multiple gigabyte-sized
custom libraries
• Dual-oscillator structure, providing two complete voice
chains for layers and splits
• Within each oscillator, up to eight-way velocity splits
and crossfades (including two-way layers)
• 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, X-Y envelope, and Scene
setup (Arpeggiator, Drum track/Step sequencer) 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
Drum Track/
X-Y
ARP
Step SEQ
Track 1
Mixer
& EQ
AMS
AMS
LFO 2
Mixer 1
Mixer 2
Filter
Amp
EG
Serial/
Parallel
+
Drive
Key
2
Effects
Amp
Key Track
Amp
OSC1
OSC2
1
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