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    Preliminary development of high definition virtual acoustic displays based on advise

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    SuzukiTakane2002.pdf (157.2Kb)
    Date
    2002-07
    Author
    Suzuki, Y.
    Takane, S.
    Takahashi, S.
    Miyajima, T.
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    Abstract
    A method for high definition virtual acoustic display (VAD) based on a model called the ``Virtual Sphere (VS) model'' is introduced [S. Takane et al., Proc. ICAD2002(2002)]. This is named ADVISE (Acoustic Display based on the VIrtual SpherE model). In this paper, sound reproduction accuracy of ADVISE is first discussed via a computer simulation. Based on the simulation results, a practical way to determine necessary parameters for ADVISE is discussed, and these parameters are approximately given for the implementation under reasonable assumptions. Then, a real-time implementation of ADVISE is introduced. This system is realized as a binaural VAD with five floating-point DSPs (Texas Instruments TMS320C6701) hosted by a PC. Consideration of hardware performance and the programming in each DSP and the host computer is also mentioned. Results of a preliminary hearing experiment with this system showed a satisfactory performance.
    URI
    http://hdl.handle.net/1853/51371
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