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Convention Paper

Efficient Cross-Codec Framing Grid Analysis for Audio Tampering Detection

Authors: Gärtner, Daniel; Dittmar, Christian; Aichroth, Patrick; Cuccovillo, Luca; Mann, Sebastian; Schuller, Gerald

AES Convention 136 · Paper 9094 · April 2014

Abstract

In this paper we present an audio tampering detection method based on the analysis of discontinuities in the framing grid, caused either by manipulations within the same recording or across recordings even with codec changes. The approach extends state of the art methods for MP3 framing grid detection with respect to efficiency and robustness, and multi-codec support, adding mp3PRO, AAC, and HE-AAC schemes. An evaluation has been carried out using a publicly available dataset. A high performance is reported on both detecting tampering and codecs showing the usefulness of the approach in audio forensics.

Details

Published in
AES Convention 136
AES Convention
136
Paper number
9094
Publication date
April 6, 2014
Session subject
Applications in Audio/Education/Forensics
Affiliation
Fraunhofer Institute for Digital Media Technology IDMT, Ilmenau, Germany; Ilmenau University of Technology, IImenau, Germany (See document for exact affiliation information.)
Type
Convention Paper