论文信息 - Using the ENF Criterion for Determining the Time of Recording of Short Digital Audio Recordings

Using the ENF Criterion for Determining the Time of Recording of Short Digital Audio Recordings

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.

Zeno J. M. H. Geradts | Maarten Huijbregtse | Z. Geradts | Maarten Huijbregtse

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