Time-scale invariant audio data embedding
作者： M.F. Mansour , A.H. Tewfik
DOI: 10.1109/ICME.2001.1237659
关键词:
摘要: We propose a novel algorithm for high-quality data embedding in audio. The is based on changing the relative length of middle segment between two successive maximum and minimum peaks to embed data. Spline interpolation used change lengths. To ensure smooth monotonic behavior peaks, hybrid orthogonal nonorthogonal wavelet decompositionisusedpriortodataembedding. Thepossibledataembedding ratesarebetween 20and 30bps.However, forpractical purposes,weuserepetitioncodes,andtheeffectiveembeddingdatarateisaround5bps.Thealgorithmisinvariantaftertime-scale modification, time shift, cropping. It gives output robust mp3 compression.
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