1. Techniques for data hiding;Bender;IBM Syst. J.,1996
2. Bimbot, F., Mathan, L., 1993. Text-free speaker recognition using an arithmetic-harmonic sphericity measure. In: Proc. EUROSPEECH 1993, pp. 169–172.
3. Brookes, M., Voicebox 2000. Available from: .
4. Cheng, Q., Sorensen, J., 2001. Spread spectrum signaling for speech watermarking. In: Proc. IEEE Internat. Conf. on Acoustics, Speech, and Signal Processing, vol. 3, Salt Lake City, UT, USA, May, pp. 1337–1340.
5. Discrete-Time Processing of Speech Signals;Deller,1993