ABSTRACT

Speech synthesis is a process which artificially produces speech for various applications, diminishing the dependence on using a person's recorded voice. The speech synthesis methods enable a machine to pass on instructions or information to the user through 'speaking'. In synthesis derived from the analysis-synthesis method, words or phrases of human speech are analyzed based on the speech production model and stored as time sequences of feature parameters. Parameter sequences of appropriate units are connected and supplied to a speech synthesizer to produce the desired spoken message. The speech synthesizer based on the vocal tract analog method is considered to be particularly effective in synthesizing transitional sounds such as consonants, since it can precisely simulate the dynamic manner of articulation in the vocal tract. The terminal analog method simulates the speech production mechanism using an electrical structure consisting of the cascade or parallel connection of several resonance and antiresonance circuits.