About: http://webisa.webdatacommons.org/18067741

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	However, there is a problem with this single-band method such that sounds of different frequencies may audibly modulate one another.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr