Nematollahi, Mohammad Ali; Vorakulpipat, Chalee; Gamboa Rosales, Hamurabi; Martínez Ruíz, Francisco Javier; De la Rosa Vargas, José Ismael
Resumen:
In this paper different digital audio watermarking techniques have been proposed. Currently, more attention is given to combination of Discrete Wavelet Transform (DWT) and Singular Value Decomposition (SVD) techniques for watermarking purpose. Available DWT–SVD audio watermarking techniques cannot be applied to speech
signals efficiently. However, Linear Predictive Analysis (LPA) technique can model digital speech signals (20–30 ms) in more flexible and efficient ways than DWT. In this paper, a novel digital speech watermarking technique is proposed by applying both LPA and SVD.