Patent ID: 10595148

Abstract:
The present technique relates to sound processing apparatus and method, and a program that can more efficiently reproduce sound;A sound processing apparatus includes: a head direction acquisition unit that acquires a head direction of a user listening to sound; a rotation matrix generation unit that selects two first rotation matrices on the basis of the head direction from a plurality of first rotation matrices for rotation in a first direction held in advance, selects one second rotation matrix on the basis of the head direction from a plurality of second rotation matrices for rotation in a second direction held in advance, and generates a third rotation matrix on the basis of the selected two first rotation matrices and the selected one second rotation matrix; and a head-related transfer function composition unit that composes an input signal in a spherical harmonic domain, a head-related transfer function in the spherical harmonic domain, and the third rotation matrix to generate a headphone drive signal in a time-frequency domain; The present technique can be applied to a sound processing apparatus.