Abstract: The Electric Network Frequency (ENF) Criterion is a recently developed forensic technique for determining the time of recording of digital audio recordings, by matching the ENF pattern from a questioned recording with an ENF pattern database. In this paper we discuss its inherent limitations in the case of short – i.e., less than 10 minutes in duration – digital audio recordings. We also present a matching procedure based on the correlation coefficient, as a more robust alternative to squared error matching.
@inproceedings{Huijbregtse:2009aa,
publisher = {Springer Verlag},
author = {Maarten Huijbregtse and Zeno J. M H. Geradts},
url = {http://www.springerlink.com/content/kw6051638254714l/},
series = {Lecture Notes in Computer Science},
booktitle = {Computational Forensics, Third International Workshop, IWCF 2009, The Hague, Netherlands, August 2009, Proceedings},
volume = {LNCS 5718},
year = {2009},
editor = {Zeno J. Geradts and Katrin Y. Franke and Cor. J. Veenman},
address = {Berlin, Heidelberg},
title = {Using the {ENF} criterion for determining the time of recording of short digital audio recordings },
pages = {116--124},
}