About: http://webisa.webdatacommons.org/317519682

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	Also in the embodiments other than FIG. 1, it can be configured that the number of the loudspeakers is two, while the number of the microphones is one.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com