Individual Difference of Ultrasonic Transducers for Parametric Array Loudspeaker

Shota Minami, Jun Kuroda, Yasuhiro Oikawa

    研究成果: Conference contribution

    1 引用 (Scopus)

    抜粋

    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.

    元の言語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
    出版者Institute of Electrical and Electronics Engineers Inc.
    ページ486-490
    ページ数5
    2018-April
    ISBN(印刷物)9781538646588
    DOI
    出版物ステータスPublished - 2018 9 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 152018 4 20

    Other

    Other2018 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2018
    Canada
    Calgary
    期間18/4/1518/4/20

    ASJC Scopus subject areas

    • Software
    • Signal Processing
    • Electrical and Electronic Engineering

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  • これを引用

    Minami, S., Kuroda, J., & Oikawa, Y. (2018). Individual Difference of Ultrasonic Transducers for Parametric Array Loudspeaker. : 2018 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2018 - Proceedings (巻 2018-April, pp. 486-490). [8462189] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICASSP.2018.8462189