| 摘要 |
The present invention discloses a sound image localization apparatus for localizing a sound image at an arbitrary location in three-dimensional space by adding an attenuation in distance to a digital filter in order to reduce an operation time of convolution and approximating the head related transfer function in a three-dimensional space thereby to control the localization in real time. The sound image localization control apparatus comprises a location sensor for three-dimensional measuring of the direction and location of a listener's head, a microprocessor for correcting sound pressure attenuation in proportion to the distance between a sound source and the head relative to a digital filter that approximates the head related transfer function consistent with the direction of the head, and a convolution processor for convolving the corrected digital filter with the monaural sound source data.
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