Control apparatus and control method

摘要

An apparatus (100) may include a control unit (108) to selectively control volume of content sound and volume of speech sound according to a priority assigned to a user corresponding to speech sound and a priority assigned to content data. When volume control is to be performed on a priority basis, the control unit may selectively control the volume of the content sound and the volume of the speech sound based on the assigned priorities (132) so that the volume of the sound having a higher priority becomes louder than the volume of the other sound.