| Popis: |
The speaker recognition and verification effectiveness of a set of 92 measurements was examined. These measurements included the formant structure of vowels, the duration of certain speech events, the dynamic behavior of the formant contours, various aspects of the pitch contour throughout an utterance, formant bandwidths, glottal source “poles,” and pole and zero locations during the production of nasals and strident consonants. Linear prediction methods were employed in the analysis, and a probability of error criterion was devised to evaluate the speaker‐characterizing potential of the measurements. The experimental speech data were collected during five different recording sessions, the last session being 312 years after the original recordings. The measurements that were found most useful were related to the nasals, certain vowel resonances, certain temporal attributes, and average fundamental frequency. A speaker identification experiment using only the five “best” measurements resulted in only one ... |
