Playing apparatus, method, and program recording medium

摘要

A sensor obtains an angular rate of a stick member. A sound source map includes plural areas disposed in a virtual space. CPU presumes a direction of a turning axis of the stick member based on the angular rate obtained by the sensor, while a user is operating the stick member, calculates an angular rate of a top of the stick member based on the angular rate obtained by the sensor with the angular rate in the longitudinal direction of the stick member removed, calculates a position of the holding member in the virtual space after a predetermined time, based on the recent direction of the turning axis of the stick member and recent angular rate of the top of the stick member, and sends a sound generating unit a note-on event of a musical tone assigned to an area corresponding to the calculated position among the plural areas.

主权项

1. A playing apparatus comprising:
a holding member operated by a user; an angular rate sensor mounted on the holding member for obtaining angular rates of the holding member respectively in three axial directions, the three axial directions including a first direction corresponding to a longitudinal axis of the holding member, a second direction that is perpendicular to the first direction, and a third direction that is perpendicular to the first direction and the second direction; a memory configured to store a sound source map including plural areas disposed in a virtual space and sound sources corresponding respectively to the plural areas; and a processor which is configured to: first calculate a direction of a rotation axis of the holding member based on the angular rates of the holding member in the first direction, the second direction, and the third direction obtained by the angular rate sensor; second calculate an angular rate of a top of the holding member based on the angular rates of the holding member obtained by the angular rate sensor with the angular rate in the first direction removed; presume a position of the holding member in the virtual space after a predetermined time, based on a recent first calculated direction of the rotation axis of the holding member and a recent second calculated angular rate of the top of the holding member; determine whether the presumed position belongs to one of the plural areas of the stored sound source map; and provide a sound generation signal to a sound generating device for instructing a generation of a sound which is assigned to the determined one of the plural areas.