Patent ID: 8472653

Claim:
A sound processing apparatus comprising: sound image localization processing means for performing a sound image localization process on a sound signal to be reproduced in accordance with a predefined head-related transfer function; a speaker section placeable over an ear of a user and supplied with the sound signal which has been subjected to the sound image localization process by the sound image localization processing means to emit sound in accordance with the sound signal; a gyro sensor provided in the speaker section to detect turning of a head of the user wearing the speaker section; an acceleration sensor provided in the speaker section to detect inclination of the gyro sensor; turning correction means for correcting detection results from the gyro sensor on the basis of detection results of the acceleration sensor, wherein the corrected detection results are an estimate of detection results that would have resulted if a detection axis of the gyro sensor was oriented in a vertical direction; and adjustment means for controlling the sound image localization processing means so as to adjust a localized position of a sound image on the basis of the corrected detection results.