The 9th International Symposium on ADVANCED TOPICS IN ELECTRICAL ENGINEERING 2015

Papers Proceedings »

Electrical Network Signal's Waveform and Frequency Logging for Forensic

In this paper we develop a framework for collecting the ENF (electric network frequency) variations in a database, which can be used in digital media authentication and time stamping. The proposed framework allows the recording of the ENF variations and of the hum signal. The discontinuities introduced in the hum signal by the probe used for data acquisition are studied and methods for minimizing these discontinuities are proposed. In the end a method for time stamping audio recordings is used, based on the created ENF database.

Author(s):

Valentin - Adrian Niță    
“Politehnica” University of Bucharest
Romania

Robert - Alexandru Dobre    
“Politehnica” University of Bucharest
Romania

Andrei Drumea    
“Politehnica” University of Bucharest
Romania

Amelia Ciobanu    
“Politehnica” University of Bucharest
Romania

Cristian Negrescu    
“Politehnica” University of Bucharest
Romania

Dumitru Stanomir    
“Politehnica” University of Bucharest
Romania

 

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