Altered pinna: Exploring shape change of pinna for perception and illusion of sound direction change

Kenichiro Shirota, Roshan Lalintha Peiris, Kouta Minamizawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This study demonstrates that by opening and closing the human pinna, we can change the direction of sound perceived by humans. Each ear was independently transformed into a 100% open, 50% open, and 100% closed state, and all 9 combinations of these ear transformations were tested to evaluate the perceived direction of the sound output from 7 speakers placed 180 degrees around the subject. We demonstrate that by deforming the pinna, we could change the perception of the direction of sound, or make it illusory. We also found that except for 1 out of 7 speakers (or directions of sound), closing 100% of the ear on the side of the speaker where the sound is coming from and 50% of the ear on the other side of the speaker tends produce the most alteration to the perceived direction of sound.

Original languageEnglish
Title of host publicationISWC 2019 - Proceedings of the 2019 ACM International Symposium on Wearable Computers
PublisherAssociation for Computing Machinery
Pages220-224
Number of pages5
ISBN (Electronic)9781450368704
DOIs
Publication statusPublished - 2019 Sep 9
Event23rd International Symposium on Wearable Computers, ISWC 2019 - London, United Kingdom
Duration: 2019 Sep 92019 Sep 13

Publication series

NameProceedings - International Symposium on Wearable Computers, ISWC
ISSN (Print)1550-4816

Conference

Conference23rd International Symposium on Wearable Computers, ISWC 2019
CountryUnited Kingdom
CityLondon
Period19/9/919/9/13

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Keywords

  • Actuating human body
  • Ear
  • Sound direction
  • Sound illusion
  • Wearable pinna device

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications

Cite this

Shirota, K., Peiris, R. L., & Minamizawa, K. (2019). Altered pinna: Exploring shape change of pinna for perception and illusion of sound direction change. In ISWC 2019 - Proceedings of the 2019 ACM International Symposium on Wearable Computers (pp. 220-224). (Proceedings - International Symposium on Wearable Computers, ISWC). Association for Computing Machinery. https://doi.org/10.1145/3341163.3347725