| 摘要 |
<p>A means of analysing and of synthesising speech is described, using the simulation of the acoustic behaviour of a tube divided into segments with variable cross-section. The variations in cross-section of the various segments of a tube allow the generation of phonemes when an air pressure and delivery source is positioned similar to the human vocal cords. By simulation, these phonemes can be generated in the form of electrical signals delivered to a loud-speaker. The invention bears upon the choice of the lengths of the tube segments and relates this choice to the fineness of the approximation which it is desired to make. For an approximation with three formants (the formants are the resonant frequencies of the tube), the tube is divided into eight segments of successive lengths L/10, L/15, 2L/15, 3L/15, 3L/15, 2L/15, L/15 and L/10; L is the total length of the tube. …<IMAGE>… </p> |
