Getting Started
Top Toolbar and Preset Browser
Bass Section
Strings Section
Poly Synthesizer Section
Lead Synthesizer Section
Output Mixer
Master Controls
LFO Section
Effects
Bender Controls
Arpeggiator
Touch Sensor
Using Quadra Multi Out Version
MIDI Controllers Setup and The MIDI Tab
QWERTY Musical Typing Keyboard (MTK)
Settings
"Touch Sensor" is vintage ARP terminology for what we now refer to as aftertouch, i.e. pressing a key after it's initially played to transmit expressive controller data. You'll need a MIDI/USB controller keyboard that transmits aftertouch to use the Touch Sensor section.
The Touch Sensor/aftertouch is compatible with controllers that output monophonic aftertouch data or polyphonic aftertouch data. In the case of poly aftertouch, Quadra will see whichever note is pressed the hardest (Given the inherent monophonic/paraphonic nature of the Quadra, it wouldn't be possible for poly aftertouch data to control individual note articulations. MIDI MPE control isn't implemented for the same reason.)
On the original ARP Quadra, the Touch Sensor only affected the top three octaves of the keyboard. We've done away with this silliness; the Cherry Audio Quadra responds to aftertouch over its entire range.
Poly Syn Depth- Sets the maximum amount of aftertouch transmitted to the the Poly Synthesizer section. The slider controller is bipolar. Off is center position, turn this up from zero for positive mod, or down from zero for negative mod.
Lead Syn Depth- Sets the maximum amount of aftertouch transmitted to the the Lead Synthesizer section. The slider controller is bipolar. Off is center position, turn this up from zero for positive mod, or down from zero for negative mod.
Buttons
Destination / Vol/Brill / Pitch Bend (Poly Synthesizer)- Toggles the destination for Poly Synthesizer Touch Sensor modulation.
Vol/Brill- This is a two-fer that simultaneously affects the Poly Synthesizer's VCA level and filter cutoff frequency.
Pitch Bend- Affects the Poly Synthesizer's Poly Wave Generators pitch, up to a maximum of a minor third.
Destination / Vol/Brill / Pitch Bend (Lead Synthesizer)- Toggles the destination for Lead Synthesizer Touch Sensor modulation.
Vol/Brill- This is a two-fer that simultaneously affects the Lead Synthesizer's VCA level and filter cutoff frequency.
Pitch Bend- Affects both of the Lead Synthesizer's oscillators, up to a maximum of a minor third.