Hemispherical breathing mode speaker using a dielectric elastomer actuator

Naoki Hosoya, Shun Baba, Shingo Maeda

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)


Although indoor acoustic characteristics should ideally be assessed by measuring the reverberation time using a point sound source, a regular polyhedron loudspeaker, which has multiple loudspeakers on a chassis, is typically used. However, such a configuration is not a point sound source if the size of the loudspeaker is large relative to the target sound field. This study investigates a small lightweight loudspeaker using a dielectric elastomer actuator vibrating in the breathing mode (the pulsating mode such as the expansion and contraction of a balloon). Acoustic testing with regard to repeatability, sound pressure, vibration mode profiles, and acoustic radiation patterns indicate that dielectric elastomer loudspeakers may be feasible.

Original languageEnglish
Pages (from-to)EL424-EL428
JournalJournal of the Acoustical Society of America
Issue number4
Publication statusPublished - 2015 Oct 1

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics


Dive into the research topics of 'Hemispherical breathing mode speaker using a dielectric elastomer actuator'. Together they form a unique fingerprint.

Cite this