Masamichi Ueta
ABSTRACT
If you knock an object, it sounds. If you play music, loudspeakers sound. The sound you usually listen to is generated by actions or objects supposed to generate sound. However, the development of parametric loudspeakers made it possible for people to feel that the sound comes from actions or objects which are not supposed to generate sound, because the parametric loudspeaker can localize the sound image on the reflected surface[1][2]. The parametric speakers work in an entirely different way from conventional loudspeakers. They generate ultrasound, and it travels out from a parametric loudspeaker in a narrowly focused column like a flashlight beam. When it hits something, it turns back into ordinary sound you can hear. There is a computer interface using this characteristic of the parametric speaker[3].
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- W. S. Gan, E. L. Tan, and S. M. Kuo. Audio projection. Signal Processing Magazine. IEEE, Vol. 28, No. 1, pp. 43--57, 2011.Google ScholarCross Ref
- A. Zerroug, A. Cassinelli and M. Ishikawa. Invoked computing: Spatial audio and video AR invoked through miming. Proceedings of Virtual Reality International Conference, pp. 31--32, 2011.Google Scholar
Index Terms
JUKE cylinder: a device to metamorphose hands to a musical instrument
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