Schaltvorrichtung für Hintergrundsound , Schaltverfahren für Hintergrundsound, lesbarer Aufzeichnungsträger mit einem Schaltprogramm für Hintergrundschall, und Videospielvorrichtung

A background-sound switching apparatus, a background-sound switching method, a readable recording medium (5) containing a background-sound switching program (5), and a video game apparatus (1) allow suitable switching of background-music data. A partitioning code (53) represents the end position of a phrase of background sounds outputted through a speaker (4). Switching instruction means (72) outputs a switching-instruction signal which causes switching from the background-sound data (52) being outputted to a D/A converter (18) to other background-sound data. Following output of the switching-instruction signal, data-number control means (82) allows a RAM (8) to store a data number (54) which defines the next background-sound data (52) to be outputted to the D/A converter (18). Code-detecting means (83) detects the partitioning code (53) of the background-sound data (52) being outputted. At each time the partitioning code (53) is detected, switching control means (84) determines whether or not the data number (54) is stored in the RAM (8); and if the data number (54) is stored in the RAM (8), the background-sound data (52) being outputted is switched to the other background-sound data (52) defined by the data number (54).