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This paper presents a blind audio tampering localization method in the perceptual sparse domain using a novel Modified Improved Spread Spectrum (MISS) watermarking approach. Current methods of audio authentication lack the ability to localize the tampered part of the audio in the presence of desynchronization attacks such as time shifting, scaling, etc. Our proposed method is able to localize the highly modified parts and then self-synchronize. To achieve this goal, Perceptual Matching Pursuitdoi:10.1109/globalsip.2013.6736862 dblp:conf/globalsip/ErfaniPR13 fatcat:6vajykxk6bbp5bwgcns6qnm6tq