Journal Forum

Perceptual Effects of Dynamic Range Compression in Popular Music Recordings - January 2014
4 comments

Accurate Calculation of Radiation and Diffraction from Loudspeaker Enclosures at Low Frequency - June 2013
9 comments

New Measurement Techniques for Portable Listening Devices: Technical Report - October 2013
1 comment

Access Journal Forum

AES Journal Forum

Electric Network Frequency Analysis for Forensic Audio

[Feature] Analysis of the electric network frequency (ENF) has rapidly emerged as a crucial tool in the armory of the forensic audio analyst. Traces of the ENF are often picked up on recordings, either by electromagnetic induction or acoustically, and these can be detected subsequently by analysts. It turns out that unique patterns in the frequency signature of power-line-related signals can be used to identify the time and place in which audio recordings might have been made. This is possible because some power grid companies keep records of the ENF in a database, against which forensic audio samples can be compared. Even if no such database is available, which is sometimes the case, analysis of residual traces of the ENF in a recording can be used to detect audio editing and other processes that might have been used to modify it. During the 46th International Conference, held recently in Denver, Colorado, a substantial number of the papers and posters were devoted to aspects of ENF analysis, a selection of which are summarized here.

Author:
JAES Volume 60 Issue 10 pp. 852-855; October 2012
Publication Date:

Click to purchase paper or you can login as an AES member to see more options.

No AES members have commented on this feature yet.

Subscribe to this discussion

RSS Feed To be notified of new comments on this feature you can subscribe to this RSS feed. Forum users should login to see additional options.

Start a discussion!

If you would like to start a discussion about this feature and are an AES member then you can login here:
Username:
Password:

If you are not yet an AES member and have something important to say about this feature then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.

 
Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society