Loudspeaker for Low Frequency Signal Driven by Four Piezoelectric Ultrasonic Motors

Ohga J, Suzuki R, Ishikawa K, Negishi H, Oohira I, Maeda K, Kubota H. Loudspeaker for Low Frequency Signal Driven by Four Piezoelectric Ultrasonic Motors. In: AES Convention 132. Audio Engineering Society; 2012. Paper 8670. Available from: https://aes.org/publications/elibrary-page/?id=16308

@inproceedings{Ohga2012_16308,
  author = {Ohga, Juro and Suzuki, Ryousuke and Ishikawa, Keita and Negishi, Hirokazu and Oohira, Ikuo and Maeda, Kazuaki and Kubota, Hajime},
  title = {{Loudspeaker for Low Frequency Signal Driven by Four Piezoelectric Ultrasonic Motors}},
  booktitle = {AES Convention 132},
  note = {Paper 8670},
  year = {2012},
  month = apr,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16308}
}

TY  - CPAPER
TI  - Loudspeaker for Low Frequency Signal Driven by Four Piezoelectric Ultrasonic Motors
AU  - Ohga, Juro
AU  - Suzuki, Ryousuke
AU  - Ishikawa, Keita
AU  - Negishi, Hirokazu
AU  - Oohira, Ikuo
AU  - Maeda, Kazuaki
AU  - Kubota, Hajime
T2  - AES Convention 132
M1  - Paper 8670
PY  - 2012
DA  - 2012/04/06
UR  - https://aes.org/publications/elibrary-page/?id=16308
PB  - Audio Engineering Society
LA  - en
AB  - The authors have been developing a completely new direct-radiator loudspeaker construction which is driven by continuous revolution of piezoelectric ultrasonic motors. It converts continuous revolution of ultrasonic motors to reciprocal motion of a cone radiator. This loudspeaker shows almost flat phase frequency characteristics in low frequency region, because its radiating motion includes no resonance in the working frequency region. Therefore it is useful for radiation of the lowest frequency part of audio signal. At this convention, the authors are going to present a practical model of this loudspeaker driven by co-operation of four ultrasonic motors.
ER  -