To provide a pointer position control method and the like for manipulating a pointer more easily. The user moves the pointer P two-dimensionally and perform click and other operations by using only “voice”—by varying the volume and pitch of produced voice without uttering any specific command. The user moves the pointer P by varying the volume and switches the travel direction of the pointer P by changing the pitch. Also, by stopping to vary the volume, the user can automatically enter a fine adjustment mode in which the user can make fine adjustments. Furthermore, the user can perform a click by stopping to produce voice suddenly and return to normal speech recognition mode by keeping silent.