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Modulation techniques for parametric loudspeakers

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F22%3A00358720" target="_blank" >RIV/68407700:21230/22:00358720 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Modulation techniques for parametric loudspeakers

  • Original language description

    Parametric array loudspeakers (PAL) transmit modulated sound waves in ultrasonic range. Due to nonlinear interaction, transmitted waves are then self-demodulated into higher frequency components and difference frequency components, which may be present in audible range. The concept was first proposed by P. J. Westervelt in 1962 [1] and then extended by H. O. Berktay’s far field solution in 1965 [2]. In original studies, Dual sideband amplitude modulation technique was used in experiments, however more eligible techniques have been developed in subsequent decades.

  • Czech name

  • Czech description

Classification

  • Type

    O - Miscellaneous

  • CEP classification

  • OECD FORD branch

    20201 - Electrical and electronic engineering

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2022

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů