Both TransAcoustic™ and SILENT pianos feature Yamaha’s newly developed Articulation Sensor System, which accurately interprets how actual pianos respond to the movements of pianists’ fingers, which are relayed from the keys through the action, causing the hammers to strike the strings. With Yamaha’s proprietary algorithm, the system delivers high-precision simulations of the movements of the hammers at the moment they strike the strings, reproducing every piano sound exactly the way the player intended. These sensors are non-contact, so they do not impact the feel of the piano.
Grand pianos feature sensors on the hammers for more accurately detecting and deciphering a wider range of key motion (e.g., slow keystrokes, quick trills) when the hammers actually strike the strings. Like the key sensors, the hammer sensors are non-contact, so they do not impact the touch of the piano.