Application To Vowel Classification

Deterding Vowel Data

11 steady state vowels of British English

15 Speakers

12th order LPC based 10 dimensional features

Methodology

11 classifiers trained - one for each vowel

Different kernels used

Ambiguous cases classified using emperical strategies

Results

Best result of 32% error rate using an RBF kernel

Best result published using neural nets or linear classifier - 38% error