Patent ID: 8934651
Filing Date: 2015-01-13
Classification: H04R,H04S

Abstract:
1. A sound image localization device for performing out-of-head sound image localization of sound being listened to by a user through a headphone, the sound image localization device comprising: a user adjuster configured such that the user can adjust frequencies at N notches of a parametric head-related transfer function (HRTF), N being an integer of 2 or more; a parametric HRTF generator configured to output a filter coefficient for realizing the parametric HRTF based on the frequencies at the N notches adjusted by the user adjuster; and a filter configured to perform, for an input signal, filtering using the filter coefficient output from the parametric HRTF generator and generate an output signal for the headphone, wherein the user adjuster is capable of invalidating at least one of the N notches, and when a first notch of the at least one of the N notches is invalidated by the user adjuster, at least one of the parametric HRTF generator and the filter is capable of realizing a parametric HRTF without the first notch, and if the first notch is invalidated, the parametric HRTF generator outputs a filter coefficient for reducing a Q factor for another notch as compared to a Q factor when the first notch is valid.