منابع مشابه
Audio Watermarking with the Help of Emd: a Review
Watermarking an audio signal is a very crucial thing. So a new watermarking technique Empirical Mode Decomposition (EMD) is introduced. The audio signal is first split into frames and each one is then decomposed by EMD to get intrinsic periodic components known as Intrinsic Mode Functions (IMFs). The combination of watermark and synchronization code are embedded into the last IMF, which is most...
متن کاملSpeech Enhancement via EMD
In this study, two new approaches for speech signal noise reduction based on the empirical mode decomposition (EMD) recently introduced by Huang et al. (1998) are proposed. Based on the EMD, both reduction schemes are fully data-driven approaches. Noisy signal is decomposed adaptively into oscillatory components called intrinsic mode functions (IMFs), using a temporal decomposition called sifti...
متن کاملEmd via mEMD: multivariate noise-Aided Computation of Standard EMD
A noise-assisted approach in conjunction with multivariate empirical mode decomposition (MEMD) algorithm is proposed for the computation of empirical mode decomposition (EMD), in order to produce localized frequency estimates at the accuracy level of instantaneous frequency. Despite many advantages of EMD, such as its data driven nature, a compact decomposition, and its inherent ability to proc...
متن کاملDigital Audio Watermarking: Survey
Digital audio watermarking is a technique for embedding additional data along with audio signal. Embedded data is used for copyright owner identification. A number of audio watermarking techniques are proposed. These techniques exploit different ways in order to embed a robust watermark and to maintain the original audio signal fidelity. This paper makes a tutorial in general digital watermarki...
متن کاملMultipurpose Audio Watermarking
A novel audio protection and authentication scheme is proposed in this paper. By quantizing a host audio’s FFTcoefficients as masking threshold units (MTUs), two complementary watermarks are designed and embedded using our cocktail watermarking method. For audio protection, high robustness can be achieved; whereas for audio authentication, tampered regions can be detected. Both of the above men...
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ژورنال
عنوان ژورنال: IEEE Transactions on Audio, Speech, and Language Processing
سال: 2013
ISSN: 1558-7916,1558-7924
DOI: 10.1109/tasl.2012.2227733