Loudspeaker Systems by Linear Motion Type Piezoelectric Ultrasonic Actuators

Nagaoka D, Ohga J, Negishi H, Oohira I, Maeda K, Oishi K. Loudspeaker Systems by Linear Motion Type Piezoelectric Ultrasonic Actuators. In: AES Convention 138. Audio Engineering Society; 2015. Paper 9283. Available from: https://aes.org/publications/elibrary-page/?id=17707

@inproceedings{Nagaoka2015_17707,
  author = {Nagaoka, Daichi and Ohga, Juro and Negishi, Hirokazu and Oohira, Ikuo and Maeda, Kazuaki and Oishi, Kunio},
  title = {{Loudspeaker Systems by Linear Motion Type Piezoelectric Ultrasonic Actuators}},
  booktitle = {AES Convention 138},
  note = {Paper 9283},
  year = {2015},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=17707}
}

TY  - CPAPER
TI  - Loudspeaker Systems by Linear Motion Type Piezoelectric Ultrasonic Actuators
AU  - Nagaoka, Daichi
AU  - Ohga, Juro
AU  - Negishi, Hirokazu
AU  - Oohira, Ikuo
AU  - Maeda, Kazuaki
AU  - Oishi, Kunio
T2  - AES Convention 138
M1  - Paper 9283
PY  - 2015
DA  - 2015/05/06
UR  - https://aes.org/publications/elibrary-page/?id=17707
PB  - Audio Engineering Society
LA  - en
AB  - The research group of authors have been developing completely new loudspeaker constructions that are driven by piezoelectric ultrasonic motors. This paper proposes two sorts of applications of piezoelectric linear actuators to both direct radiator and horn loudspeakers. A direct-radiator loudspeaker with a cone radiator driver by piezoelectric actuators shows smooth frequency characteristics in low frequency region because its radiating motion includes no significant resonance in the working frequency region. Therefore, it is useful for radiation of the lowest frequency part of audio signal. A horn loudspeaker by the same actuators works in rather moderate frequency region that is higher than the cut-off frequency of hones of ordinary size.
ER  -