3D woofer drive circuit

Apparatus and method for adjusting levels between channels of a

Apparatus and method for enhancing the perceived sound image of

Audio circuit for a television receiver with central speaker pro

Audio signal processing arrangement for deriving a centre channe

Audio system for vehicular applications

Audio-band electro-mechanical vibration converter

Center channel enhancement of virtual sound images

Center mode control circuit

Circuit and program for processing multichannel audio...

Digital 3-channel transmission of left and right stereo signals

Four dimensional acoustical audio system

Linear-matrix audio-imaging system and image analyzer

Loudspeaker system for producing multiple sound images within a

Method and apparatus for creating a virtual third channel in...

Method and apparatus for producing a phantom...

Method and system for optimizing audio imaging in an automotive

Multi-channel sound simulation system

Multi-dimensional processor and multi-dimensional audio...

Multiple-channel audio reproduction apparatus