Subjective assessment of frequency bands for perception of speaker identity
Eda Ormanci, U. Hakan Nikbay, Oytun Türk, Levent M. Arslan · 2002
In this study, we describe and evaluate a subjective test to determine the importance of subbands in perceiving the speaker identity. Pairs of sound files have been generated where the first sound file is the full-band version of a word and the second file is a subband of the same word in the first part and a subband of a different word in the second part of the experimental work. Words in each pair are uttered by either the same speaker or different speakers. S ubjects were asked to score each pair of sound files they listened to according to the similarity of the speakers uttering each word. Also a consistency score is calculated for each subject to render the statistics more reliable. The experiment demonstrates that the second subband (1034 Hz-1895 Hz range) is the most important subband for speaker identification.