<http://webisa.webdatacommons.org/453976081>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/213005653>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/453976081> .
<http://webisa.webdatacommons.org/453976081>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<freepatentsonline.com> .
<http://webisa.webdatacommons.org/453976081>	<http://www.w3.org/ns/prov#value>	"In one embodiment, the personal communication device can be a stand-alone unit or can be in communication with a hearing aid.In one embodiment, the calibration audio file can be encoded in a digital format, such as MP3, and decoded by the personal communication device." .