Abstract: A sound encoding and decoding technique for interactive content according to the present disclosure provides additional sound channels encoded in real time from 3D audio vector and level information. The additional channels are encoded into the native sound channel format for compatibility with legacy equipment. Decoding equipment compatible with the present disclosure decodes the native sound stream and extracts the additional channels to provide a more immersive interactive sound experience.

Abstract: Sound reproduction according to the present disclosure integrates an additional sound field, direct surround sound, to existing diffuse or ambient surround sound systems. Direct surround sound permits point source sounds to be located in an ambient or diffuse surround field and or to be moved within the surround field with control of the sound timbre. Sound mixing equipment may include two or more direct surround channels to permit sound designers and engineers to add, locate and move point source sounds within the surround field. The inclusion of two or more point source loudspeakers improves the surround array by providing direct sources that may be localizable and timbre matched to the screen channel speakers. This in turn provides filmmakers and other content creators a new tool they can use during the creation of content such as movie soundtracks.