![]() ![]() However, post-processing operations applied to forged speech to hide traces of forgery make detection of forensic more difficult. Related to the bit-rate of the first-time MP3 encoding and the bit-rate of the second-time MP3 encoding.Ĭopy-move forgery is one of the most widely used methods in the field of audio forensic because it is difficult to detect and convenient to apply. Our study also indicates that the detection performance is closely Method is highly effective for detecting faked MP3 files. Experimental results show that our designed ![]() To detect double MP3 compression, in this paper, we extract the statistical features on the modified discrete cosine transformĪnd apply a support vector machine to the extracted features for classification. It is evidence of manipulation and thus may warrant further forensic analysis since, e.g., faked MP3 files can be generatedīy using double MP3 compression at a higher bit-rate for the second compression to claim a higher quality of the audio files. ![]() Although double MP3 compression does not prove a malicious tampering, MP3 file is said to have undergone double MP3 compression. If the compression quality of doctored MP3 file is different from the quality of original MP3 file, the doctored Generally uncompress a MP3 file, tamper with the file in the temporal domain, and then compress the doctored audio file back Standard of digital audio compression for the transfer and playback of music on digital audio players. MPEG-1 Audio Layer 3, more commonly referred to as MP3, is a popular audio format for consumer audio storage and a de facto ![]()
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