1. Bismarck, G. von [ 1974 ]. Sharpness as an attribute of the timbre of steady sounds. Acustica, 30: 159–172.
2. Daniel, P., and R. Weber [ 1997 ]. Psychoacoustical roughness: Implementation of an optimized model. Acustica Acta Acustica, 83: 113–123.
3. Davis, S.B., and P. Mermelstein [ 1980 ]. Comparison of parametric representations for monosyllabic word recognition in continuously spoken sentences. IEEE Transactions on Acoustics, Speech and Signal Processing, ASSP-28. 357–366.
4. Duda, R.O., and P.E. Hart [ 1973 ]. Pattern classification and scene analysis. Wiley, New York.
5. Foote, J. [1997]. A similarity measure for automatic audio classification. In Proc. AAAI1997 Spring Symposium on Intelligent Integration and Use of Text, Image, Video, and Audio Corpora.