Is there a Dolby technology that uses only two speakers for surround sound?
Dolby Virtual Speaker technology enables true-to-life 5.1 surround sound from both multichannel and stereo programs over as few as two speakers, allowing multichannel programs to be heard as their producers intended. Its uniquely powerful, next-generation signal processing convincingly portrays the sound of properly placed surround speakers, making it ideal for use in PCs, DVD players, and TV sets. As a result, all viewing, listening, and gaming activities are transformed into realistic surround sound experiences without the added expense and complexity of a traditional surround system. Also available are Virtual Dolby Surround and Virtual Dolby Digital technologies that are less sophisticated and less expensive to implement than Dolby Virtual Speaker technology, but nonetheless enable a pleasing surround sound effect over just two speakers. Efficient virtualizing circuitry processes the surround channels derived by the Dolby multichannel decoder, then mixes them back into the Left and