From Longman Dictionary of Contemporary Englishsurround-soundsurˈround-ˌsound, surround sound noun [uncountable] a system of four or more speakers (=pieces of equipment that sound comes out of) used so that sounds from a film or television programme come from all directions —surround-sound adjective [only before noun] surround-sound speakers
Examples from the Corpus
surround-sound• The Auri is home theater seemingly gone mad, promising a full surround-sound experience through an ordinary pair of headphones.• Dolby Digital, the next generation in surround-sound, is coming to the mass market.• The big snag for listeners is that the equipment for receiving the surround-sound is not yet on sale. 