About: http://webisa.webdatacommons.org/444387382

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	These may involve changing gain, filtering, noise suppression, modulation, bandwidth or other techniques as are known in the art.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk