Virtual Space Sound Technique and Its Multimedia Education Application

Generally research about acoustic perception starts late and not so mature like visual technique, when talking about whole virtual reality system. Paper introduced concept and principle of virtual space sound. Paper mainly studied VRML’s sound processing technique, including AudioClip node and Sound node. AudioClip is used to provide sound source information. Its field’s value is to designate where we can acquire a pre-record sound file, and how to control when broadcasting. Sound node is mainly used to produce sound field, as being sound transmitter. In Sound node, we can designate various broadcasting parameter, for example the position of sound source and sound’s 3D form of expression. Here we demonstrate an Acoustic field ellipse sphere mechanism. Finally in combination with multimedia education, give a spacial sound effect testing example.