To hear some examples of natural speech samples and sinewave replicas, press the link. You must be able to open the pdf file in an Adobe application, such as Acrobat Reader or Acrobat Professional. Safari will not play the listening examples.
The research reports that describe the use of these sounds are:
Remez, R. E., Fellowes, J. M., & Nagel, D. S. (2007). On the perception of similarity among talkers. Journal of the Acoustical Society of America, 122, 3688-3696.
Sheffert, S. M., Pisoni, D. B., Fellowes, J. M & Remez, R. E. (2002). Learning to recognize talkers from natural, sinewave and reversed speech samples. Journal of Experimental Psychology: Human Perception and Performance, 28, 1447-1469.
Fellowes, J. M., Remez, R. E., & Rubin, P. E. (1997). Perceiving the sex and identity of a talker without natural vocal timbre. Perception & Psychophysics, 59, 839-849.
Remez, R. E.,
Fellowes, J. M., & Rubin, P. E. (1997). Talker identification based on
phonetic information. Journal of Experimental Psychology: Human Perception
and Performance, 23, 651-666.