Recording device identification by ENF harmonics power analysis.

Authors :: Bykhovsky D
Source :: Forensic science international [Forensic Sci Int] 2020 Feb; Vol. 307, pp. 110100. Date of Electronic Publication: 2019 Dec 12.
Publication Year :: 2020
Abstract: Two important aspects of digital audio forensics are integrity validation of the recorded contents and identification of the acquisition device that produced the recording. One of the effective methods for integrity validation is based on induced electrical network frequency (ENF) signal analysis. The goal of this paper is to extend the usage of the ENF signal for the identification of the acquisition device. The proposed identification method is based on the harmonic amplitude coefficients of ENF signals that are effectively applied as feature vectors. The evaluation results demonstrate the efficacy of the proposed approach.<br /> (Copyright © 2019 Elsevier B.V. All rights reserved.)