How It Works


Each transducer contains a coil and a permanent magnet. On upright TransAcoustic™ pianos, the comparatively light coil section is affixed to the soundboard, and the heavier permanent magnet is attached to a side board. Since the transducers themselves do not press against or exert any weight on the soundboard, the soundboard can vibrate and resonate freely, ensuring no adverse effect on the acoustic piano tone.

Because the tonal traits of acoustic pianos vary with size and shape, TransAcoustic™ pianos are digitally optimized to deliver the same quality sound regardless of individual piano characteristics.

Yamaha has developed a patented technology that separates the transducers from the soundboard using a proprietary link mechanism to offset any future changes in the soundboard's shape.

Doesn't Interfere with Sound Board

Yamaha Quality Sound

Long Lasting Sound Quality

Yamaha TransAcoustic GC1TA
Yamaha TransAcoustic U1TA


48" Upright


6'1" Grand

On TransAcoustic™ Upright pianos, activate TransAcoustic™ mode by depressing the center pedal and sliding it to the left. This brings a hammer stop rail into place and prevents the hammers from striking the strings. On TransAcoustic™ Grand Pianos the hammer stop rail is engaged by using a motorized system.

A non-contact continuous optical sensor system is used to register the depth and velocity at which keys are depressed. Along with the key sensors, grey-scale shutters are installed under each of the 88 keys. A grey-scale shutter is a small, thin plate whose optical transmission increases towards its bottom while an LED light beam is constantly radiated inside a key sensor. When a piano key is depressed, a grey-scale shutter blocks that light, with the amount of light blocked increasing in proportion to the depth of the keystroke. Based on the amount and traveling speed of the blocked light, the sensor registers keystroke depth and velocity as well as the timing at which muting should occur.

The registered information is then transmitted to the instrument's tone generator. Using the control unit you can select your sound and volume.

The tone generator sends audio that is optimized for the TransAcoustic™ system to the instrument's transducers. The transducers then output the signal through the proprietary linkage system and the coils excite the soundboard causing it to vibrate. The result is a full-range, digitally generated sound that is acoustically amplified and enhanced. The sound energy traveling through the soundboard is also transferred to the bridge, activating the strings and creating natural string resonance.

Digital was never more Natural

An acoustic piano with volume control, or a digital piano with strings? Yamaha's latest development stretches the imagination and opens up a whole new world of possibilities.

A Fine Acoustic Piano

Play at any Volume

Enjoy a Variety of Sounds

No Speakers Needed

3D Sound Projection

Natural String Resonance

Combine Acoustic and Digital Sound

Play-Along with Your Music

Silent Piano SH Included

Yamaha TransAcoustic YUS5TA
Yamaha TransAcoustic YUS3TA
Yamaha TransAcoustic YUS1TA
Yamaha TransAcoustic C3XTA
Yamaha TransAcoustic C1XTA


48" Upright


52" Upright


52" Upright


5'3" Grand


5'3" Grand

Available Models