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Audio Steganography using Echo Hiding in Wavelet Domain ...
https://www.ijcaonline.org/research/volume140/number2/lahiri-2016-ijca-909223.pdf
Discrete Wavelet Transform and Least Significant Bit. The method emphasizes on the scheme of image hiding in audio. The approach compares it with simple LSB insertion method for data hiding in audio. M. P. Jain and Prof. V. Trivedi, [8], proposed a method that compares coefficients in the Discrete Cosine Transform domain.
Speech steganography using wavelet and Fourier …
https://asmp-eurasipjournals.springeropen.com/articles/10.1186/1687-4722-2012-20
The series of steps of phase coding is as follows: (i) The original audio signal is decomposed into smaller segments such that their length is equal to the size of the message to be encoded; (ii) A discrete Fourier transform (DFT) is then applied on each segment leading to a phase matrix; (iii) Compute the differences between the phase of each pair of the consecutive …
A Discrete Wavelet Transform: A Steganographic Method for ...
https://www.ijcaonline.org/research/volume129/number5/wakure-2015-ijca-906915.pdf
techniques are based on following transforms such as 1.Discrete Fourier Transform (DFT) 2. Discrete Cosine Transform (DCT). 3. Discrete Wavelet Transform (DWT). 4.Singular Value Decomposition (SVD) Transform and 5. Discrete Hadamard Transform (DHT). These techniques
Audio in Image Steganography based on Wavelet …
https://www.researchgate.net/publication/271157735_Audio_in_Image_Steganography_based_on_Wavelet_Transform
For data concealing in audio, Discrete Cosine Transform (DCT) and Discrete Wavelet Transform (DWT) were all applied. N. Kaul [11] found that an audio message can be …
Speech steganography using wavelet and Fourier …
https://www.academia.edu/2877242/Speech_steganography_using_wavelet_and_Fourier_transforms
Keywords: Audio steganography, Discrete wavelet transform, Fast Fourier transform, Data hiding, Speech steganography Introduction The word steganography is derived from two Greek One of the concerns in the field of secure communication words: Stego (means cover) and graphy (means writing). is the concept of information security.
High-SNR steganography for digital audio signal in the ...
https://link.springer.com/article/10.1007/s11042-020-09980-6
Suppose original audio signal with length L is firstly cut into I segments and then H-level discrete wavelet transform is performed on each segment. Thus, the total number of lowest-frequency coefficients in each segment is P = L /( I · 2 H ).
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