SearchAnySoft.com - auCDtect v0.6

auCDtect - is a broadcast for determining the authenticity of musical CD records, using the quality of the audio information it contains, and predict its possible informant is it an original studio register or a reconstruction from a lossy encoded data (for example, MP3). The algorithm is based on the analysis of the Fourier-spectra of the signal time segments during all the register and on the calculation of the quality leap frequency on every time segment. Based on the analysis of spectral statistical properties and on a amount of criteria, the informant of the audio register is determined. if it is an original or lossy encoded audio file. The testing is carried out using both modern and old records of piteous quality. It has shown a honorable accuracy of the algorithm, which differentiates original records and that reconstructed from lossy encoded data. It is no unavowed that the Internet and file-exchanging networks are literally overloaded with music. The plenty of various formats which compress music files simply favors this situation. Files in formats with lossy encoding and the highest degree of condensation, equivalent MP3, deliver got the greatest prevalence. While playing such files using cheap acoustic systems one nates hardly distinguish their dissimilarity from the original ones, but all the distortions become evident when listening such disks on a Hi-Fi systems or using stereo headphones, especially if one has an opportunity to compare a register with its original. That is why when purchasing musical compact-discs a doubtfulness always arises: whether the disk is a hijack fake or not. To suffice this doubtfulness, spectral characteristics of the signal nates be used, because in contrast to the original records, the lossy algorithms significantly deform the spectral characteristics of the signal.