Aftertouch Keybed Sensing — Stage Piano Platform
Flexible pressure strips beneath each key deliver polyphonic aftertouch on a proven keybed platform, tuned for stage pianos without changing the mechanical feel.
System Overview
A polyphonic aftertouch sensing solution for stage-piano and controller keybeds. An ultra-thin FSR pressure strip is laminated under each key, adding finger-pressure control after the initial strike without changing the key travel or the mechanical feel musicians expect.
How It Works
While a key is held down, additional finger force deforms the FSR strip and raises its conductance. A multi-channel ADC scans all key strips continuously, firmware applies the per-key linearization curve and converts the stable force value into MIDI channel-pressure or polyphonic aftertouch messages, with adjustable curves exposed to the product designer.
On-Site Deployment & Sensor Integration
Hardware & Signal Chain Architecture
Related Projects
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