33. The speech synthesizer of claim 32 wherein said vocal tract means includes a fifth resonant filter adapted to resonate at a frequency higher than said relatively high fixed frequency formant in said voiced excitation signal.
33. The speech synthesizer of claim 32 wherein said vocal tract means includes a fifth resonant filter adapted to resonate at a frequency higher than said relatively high fixed frequency formant in said voiced excitation signal. 34. The speech synthesizer of claim 33 wherein said fixed frequency formant in said voiced excitation signal is located at approximately 4000 Hz and said fifth resonant filter of said vocal tract means is adapted to resonate at approximately 4400 Hz.