Information processing apparatus/method and presentation medium

摘要

A browser generates a sound of track 0 recorded in a MIDI file named music.mid. A Sony_AudioClip node receives data of the music.mid file as an event, outputting the data from a musicData field thereof to a musicData field of a Sony_MusicNoteInterpolator node. The Sony_MusicNoteInterpolator node interpolates a value between a value of a high sound and a value of a low sound prescribed by a keyValue field, outputting a result of the interpolation from value_changed. A PositionIP.value_changed field of a PositionInterpolator node outputs position data corresponding to data of the height of the sound supplied from the Sony_MusicNoteInterpolator node to a CONE_OBJ.set_translation field of a CONE_OBJ Transform node. As a result, the position of an object is changed in synchronization with the generation of a sound.