| 摘要 |
<p>PURPOSE:To facilitate the switching operation of a window and an acoustic source for a user by synchronizing acoustic information and video information outputted corresponding to the window and reproducing the information with back track to a good position to leave off. CONSTITUTION:An audio output is switched so that music information read from a music CD 921 can be outputted to a speaker 906 as the acoustic information corresponding to the newly selected window. This switching is executed by referring to a window management table 400. It is recognized that acoustic equipment corresponding to the newly selected window is a music CD reproducing device 920, and the selection of this regenerative output is executed by outputting a command to an acoustic output switching device 908. When the instruction of back track is received from a window program, each application program judges whether it is necessary to execute the back track or not, acoustic and video back track is executed as needed and afterwards, these kinds of information are reproduced.</p> |
