Consonance Perception of Vibrotactile Chords: A Feasibility Study
This paper is concerned with the perception of complex vibrotactile stimuli in which a few sinusoidal vibrations with different frequencies are superimposed. We begin with an observation that such vibrotactile signals are analogous to musical chords where multiple notes are played simultaneously. A set of “vibrotactile chords” are designed based on the musical chords, and their degrees of consonance (harmony) that participants perceive are evaluated through a perception experiment. Experimental results indicate that the participants can robustly rate the degree of consonance of the vibrotactile chords and establish a well-defined relation of the degree of consonance to the base and chordal frequencies of a vibrotactile chord. These findings have direct implications to the design of complex vibrotactile signals that can be produced by current wideband actuators such as voice-coil, piezoelectric, and electroactive polymer actuators.
KeywordsFrequency Ratio Base Frequency Vibrotactile Stimulus Sinusoidal Vibration Adjective Rating
Unable to display preview. Download preview PDF.
- 3.Brown, L.M., Brewster, S.A., Purchase, H.C.: A first investigation into the effectiveness of tactons. In: Proceedings of the World Haptics Conference, pp. 167–176 (2005)Google Scholar
- 5.von Helmholtz, H.: On the Sensations of Tone. Dover Publications, Inc., New York (1954)Google Scholar
- 6.Hwang, I., Choi, S.: Perceptual space and adjective rating of sinusoidal vibrations perceived via mobile device. In: Proceedings of the Haptics Symposium, pp. 1–8. IEEE, Los Alamitos (2010)Google Scholar
- 7.Israr, A., Choi, S., Tan, H.Z.: Detection threshold and mechanical impedance of the hand in a pen-hold posture. In: Proceedings of the IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), pp. 472–477 (2006)Google Scholar
- 9.Park, G., Choi, S.: Tactile effect design and evaluation for virtual buttons on a mobile device touchscreen. To be presented in the 13th International Conference on Human-Computer Interaction with Mobile Devices and Services (MobileHCI). ACM, New York (2011)Google Scholar
- 10.Park, G., Choi, S.: Perceptual space of amplitude-modulated vibrotactile stimuli. To be presented in IEEE World Haptics Conference (2011)Google Scholar
- 13.Tan, H.Z.: Information Transmission with a Multi-Finger Tactual Display. Ph.D. thesis, Massachusetts Institute of Technology (1996)Google Scholar
- 15.Vickhoff, B.: A Perspective Theory of Music Perception and Emotion. Ph.D. thesis, University of Gothenburg (2008)Google Scholar