| 摘要 |
<p>The invention relates to a method for the reliable identification of a speaker based on long or short phonograms, phonograms recorded in different channels with high interference and distortion levels, and phonograms including random speech of narrators under various psycho-physiological conditions and speaking in different languages. The present method can be used in a wide range of applications, including in criminal investigations. The identification of a speaker based on speech phonograms is made by estimating the convergence between a first phonogram of the speaker and a second calibration phonogram. In order to carry out the estimation, the method comprises selecting on the first and second phonograms reference fragments of speech signals containing formant trajectories of at least three formants, comparing the reference fragments in which the values of at least two formant frequencies coincide, estimating the convergence of the compared reference fragments based on the coincidence of the values of the remaining formant frequencies, and determining the convergence of all the phonograms based on the global estimation of the convergence of all the compared reference fragments.</p> |
