Detection and classification of double compressed MP3 audio tracks
con Nessun commento

T. Bianchi, A. De Rosa, M. Fontani, G. Rocciolo, A. Piva,
Detection and classification of double compressed MP3 audio tracks“,
Proceedings of the 2013 ACM Information Hiding and Multimedia Security Workshop, July 2013,  Montpellier, France

In this paper, a method to detect the presence of double compression in a MP3 audio file is proposed. By exploiting the effect of double compression in the statistical properties of quantized MDCT coefficients, a single measure is derived to decide if a MP3 file is single compressed or it has been double compressed and also to devise the bit-rate of the first compression. Experimental results confirm the performance of the detector, mainly when the bit-rate of the second compression is higher than the bit-rate of the first one.