Patent ID: 7920707

Claim:
An audio system having a plurality of speakers for producing audio sound; an audio source apparatus for supplying, to the respective speakers, audio signals expressing the audio sound to be produced from the speakers; and delay units for giving a delay-time difference between the audio signals supplied from the audio source apparatus to the respective speakers, the audio system comprising: a storage unit that stores relationship information indicating a relationship between a localization position of a sound image of audio sound produced from the speakers and a delay-time difference for audio signals supplied to the respective speakers; a localization-position setting reception section for receiving, from a user, a setting of a desired localization position of a sound image of the audio sound produced from the speakers; a delay-time difference controller for causing the delay units to determine the delay-time difference that is applied to the audio signals supplied to the respective speakers so that the sound image of the audio sound is localized to the desired localization position received by the localization-position setting reception section, the delay-time difference being determined in accordance with the relationship indicated by the relationship information stored in the storage unit; a localization-position input reception section for receiving, from the user, an input of a perceived localization position of a sound image of audio sound that is produced from the speakers and aurally perceived by the user; and a relationship-information modifying section for modifying the relationship indicated by the relationship information stored in the storage unit so as to correspond to an association between the perceived localization position received by the localization-position input reception section and a delay-time difference for the desired localization position determined by the delay units.