Computer-aided conversion system and method for generating intelligible speech

A computer-aided conversion system for generating intelligible speech used for obtaining a speech not originated from a vocal cord of a user, the computer-aided conversion system for generating intelligible speech comprising:

• a detection unit, comprising a transmitter disposed corresponding to the nasal cavity of the user, and a receiver disposed in pairs with the transmitter;
• and
• an computation unit, comprising a transmitting-computing module to generate a detecting signal and transmit the detecting signal to the transmitter, and a receiving-computing module to analyze a reflected signal received by the receiver, wherein the transmitter transmits the detecting signal in a waveform to the nasal cavity of the user, the receiver receives a reflected wave originating from the nasal cavity of the user and converts the reflected wave into the reflected signal, the receiving-computing module obtains a spectrum corresponding to an acoustic model of an articulatory cavity based on the reflected signal, and the spectrum corresponds to a speech not originated from the vocal cord of the user.