Cascade/parallel terminal analog speech synthesizer and a strategy for consonant—vowel synthesis
Dennis H. Klatt · The Journal of the Acoustical Society of America · 1977
A FORTRAN subroutine has been developed for the synthesis of speech and speech-like waveforms appropriate for psychophysical experimentation. The program accepts, as input, a set of control parameter values every 5 msec and produces, as output, samples of a synthetic speech waveform. Formant resonators simulating the transfer function of the vocal tract may be configured in cascade and/or in parallel (depending on the requirements of the user) by changing the value of the logical switch. There is a minimal change in the output speech when the switch value is changed. The parallel version of the synthesizer is both easier to control and a better model of the vocal tract transfer function than a number of earlier parallel synthesizers. A FORTRAN listing of the synthesizer is available upon request. Soon to be completed is a manuscript that describes simplified control strategies for the synthesis of various consonant—vowel syllables of English. [Work supported by NIH Grant NS 04332.]