抄録
A parametric array loudspeaker (PAL) consists of a lot of ultrasonic transducers in most cases and is driven by an ultrasonic which is modulated by audible sound. Because each ultrasonic transducer has each difference resonant frequency, there is the individual difference in ultrasonic transducers of a PAL in a manufacturing process. In this paper, two PALs are made of each set of transducers with large and small variance of resonant frequencies. Quality factor of PAL with the large variance of resonant frequencies is smaller than that of PAL with small variance, and the demodulated audible sound pressure level (SPL) is large and almost flat to 3 kHz in PAL with the large variance of resonant frequencies.
| 本文言語 | English |
|---|---|
| ホスト出版物のタイトル | 2018 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2018 - Proceedings |
| 出版社 | Institute of Electrical and Electronics Engineers Inc. |
| ページ | 486-490 |
| ページ数 | 5 |
| 巻 | 2018-April |
| ISBN（印刷版） | 9781538646588 |
| DOI | |
| 出版ステータス | Published - 2018 9月 10 |
| イベント | 2018 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2018 - Calgary, Canada 継続期間: 2018 4月 15 → 2018 4月 20 |
Other
| Other | 2018 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2018 |
|---|---|
| 国/地域 | Canada |
| City | Calgary |
| Period | 18/4/15 → 18/4/20 |
ASJC Scopus subject areas
- ソフトウェア
- 信号処理
- 電子工学および電気工学