About: http://webisa.webdatacommons.org/239205887

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	And, you' will have to do some averaging (or maybe ignore everything except the peaks), since audio is constantly-changing AC, but the Arduino only reads the instantaneous voltage.
http://www.w3.org/ns/prov#wasQuotedFrom	arduino.cc