About: http://webisa.webdatacommons.org/198173100

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Accordingly, there is a need for a surround sound??? system that allows a listener to freely roam throughout a room while still perceiving the effect of three dimensional sound.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com