Speaker invariant principal component determination for Bangla vowel perceptual space

In this article, speaker invariant principal components have been determined from the multi-dimensional perceptual space for Bangla vowels. Linguistic content base nine-dimensional perceptual space has been formed from the formant frequency related properties of ten Bangla vowels (/a/, /ã/, /i/, /ĩ/,/u/, /ũ/ /e/, /ai/,/õ/, and /au/). Average normalized eigen-value profile is calculated using Bangla vowel perceptual spaces of fifteen speakers. Speaker invariance is numerically evaluated using the correlation of first and second principal components of the fifteen speakers. The contributions of perceptual vector members in first and second principal components are also investigated.