About: http://webisa.webdatacommons.org/345598768

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 an improved ???objective??? test signal for use in echo canceller performance evaluations.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com