1. Vary P, Martin R: Digital Speech Transmission -Enhancement, Coding and Error Concealment. John Wiley & Sons Ltd, UK; 2006.
2. Larsen E, Aarts RM: Audio Bandwidth Extension-Application of Psychoacoustics, Signal Processing and Loudspeaker Design. John Wiley & Sons Ltd, UK; 2004.
3. Qian Y, Kabal P: Wideband Speech Recovery from Narrowband Speech using Classified Codebook Mapping, in Proceedings of the 9th Australian International Conference on Speech Science & Technology. Australian Speech Science & Technology Association Inc., Melbourne, Australia; 2002.
4. Pulakka H, Alku P: Bandwidth extension of telephone speech using a neural network and a filter bank implementation for highband Mel spectrum. IEEE Trans. Audio Speech Lang. Process. 2011, 19(7):2170-2183. 10.1109/TASL.2011.2118206
5. Jax P, Vary P: Feature Selection for Improved Bandwidth Extension of Speech Signals, in Proceedings of the International Conference on Acoustics, Speech, and Signal Processing. IEEE, Montreal, Quebec; 2004.