Sound environment simulator using a computer simulation and a method of analyzing a sound space
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United States of America Patent
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Nov 14, 1995
Grant Date -
N/A
app pub date -
Oct 12, 1993
filing date -
Oct 13, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention discloses a sound environment simulator including a sound field analyzing unit, a sound field reproducing unit, and an output unit. The sound environment analyzing unit divides the solid surfaces of a space to be analyzed into a set of sections to compute the volume of reflected sounds with a sound absorption coefficient of walls and form factors. It further computes time series data related to the arrival volume of sounds emanated from a certain sound source to the sound receiving point. An impulse response computing unit in the sound field reproducing unit transduces the time series data into an impulse response. Accordingly, the sound field reproducing unit convolutes the impulse response on a dry source in accordance with data related to a listener's position inputted from an associated virtual reality equipment to generate a reproduced sound over a headphone.
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