The Yamaha Muro Sensor is a stick-like device equipped with a triaxial acceleration sensor that can be used to play music by sensing the direction and speed of acceleration. The Muro sensor is using pretty similar technology we see in Nintendo Wii Remote controler. The Yamaha Muro Sensor however uses a proprietary 2.4GHz wireless module to transmit the values of the acceleration to the user’s PC.
The Yamaha Muro Sensor developer team explained the reason why it used Nordic’s proprietary wireless specifications as follows.
“It enables to connect up to 24 units of the Muro Sensor to one base unit at the same time,” said Katsumi Matsui, who belongs to the Center for Advanced Sound Technologies, Innovative Technology Division, Yamaha Corp. “Also, its transmission delay is less than 3ms.”
Each unit of the Muro Sensor has its own ID and can generate different sounds. Because up to 24 units can be used at the same time, 12 people can play at the same time even if each of them holds two units.
Yamaha plans to use the device in the company’s new project, “Music and Health,” for its music training classes.