1. Quackenbush, S., Barnwell, T., Clements, M.: Objective measures of speech quality. Prentice Hall, Englewood Cliffs (1988)
2. Loizou, P.: Speech Enhancement: Theory and Practice. CRC Press LLC, Boca Raton (2007)
3. Grancharov, V., Kleijn, W.: Speech Quality Assessment. In: Benesty, J., Sondhi, M., Huang, Y. (eds.) Handbook of Speech Processing, pp. 83–99. Springer, Heidelberg (2008)
4. Berouti, M., Schwartz, M., Makhoul, J.: Enhancement of speech corrupted by acoustic noise. In: Proc. IEEE Int. Conf. Acoust. Speech, Signal Processing, pp. 208–211 (1979)
5. ITU-T, Subjective performance assessment of telephone band and wide-band digital codecs, ITU-T Recommendation p. 830 (1996)