| 摘要 |
<p>It is an object of the present invention to provide a sound image localization apparatus which can provide a sound image localized in a targeted spot with accuracy for each listener, and reduce the amount of data and calculations needed to localize the sound image in the targeted spot with accuracy. The parameter setting unit 11 has parameters (center frequency "fc", sharpness "Q", and signal level "L") needed to reproduce structural features selected from among peaks, dips, and attenuations in high and low frequency ranges, and other structural features of amplitude-frequency characteristics of the head-related transfer function corresponding to respective spots, and parameters (delay time and signal level) needed to reproduce structural features such as interaural time difference (ITD) and interaural level difference (ILD) of the standard head-related transfer functions corresponding to respective spots. The parameter setting unit 11 sets parameters of a targeted spot to the sound image localization processing unit 12, while the sound image localization processing unit 12 processes a sound source signal on the basis of the parameters from the parameter setting unit 11, and outputs sound image localization signals.</p> |
