| 摘要 |
PURPOSE: To decide the intellectual contents of voice uttering by plotting the instruction of a selected spectral parameter at every frame within a time string and generating a first singature expressing voice uttering. CONSTITUTION: Respective kinds of voice uttering are digitally sampled and expressed as the time string of a data frame. After that, fast Fourier transformation(FFT) is applied to the respective data frames and the tracks of the output amplitude frequency bins in eight high-order envelope lines 80 are graphically displayed. The eight tracks are synthesized, waveforms 82, 84, 86, 90, 92, 94 and 96 are graphically displayed in a group of axes and the single waveform for forming the envelope lines of the whole other waveforms is formed. That is, the waveform 98 expresses the graphic expression of a high-order bin number group which is obtained by FFT with time. That is, the waveform 98 is an output value signature which indicates the movement with time of an audio output in an audio spectrum. |
