Command-line Tract Model Based Vowel Synthesis

A command-line based demo application has been written to allow users to experiment with the various parameters of the digital waveguide based tract model. The application is called tract_vowel, and may be downloaded at
http://www-ccrma.stanford.edu/~rjc/audio/speech/vowel/tract_vowel/tract_vowel.tar.gz.

The application allows for the setting of tract parameters on the command-line via options preceded with a `-' character, or the command-line options may be stored in a text file and then submitted to the program using the `-f' option. More information may be obtained by typing `./tract_vowel --help' in the directory into which the program has been downloaded.

Clips of two vowel sounds (``eee'' and ``ahh'') generated using this program may be heard at
http://www-ccrma.stanford.edu/~rjc/audio/speech/vowel/tract_vowel/rjc_stk_tract_vowel_eee_ex.snd, and
http://www-ccrma.stanford.edu/~rjc/audio/speech/vowel/tract_vowel/rjc_stk_tract_vowel_ahh_ex.snd.