Connectionist Bench (Vowel Recognition - Deterding Data) data set 1: Description. This database contains information about speaker independent recognition of the eleven steady state vowels of British English using a specified training set of lpc derived log area ratios. This version is a merge of the two original databases preset at the UCI repository. 2: Type. Classification 3: Origin. Real world 4: Instances. 990 5: Features. 13 6: Classes. 11 7: Missing values. No 8: Header. @relation vowel @attribute TT integer [0, 1] @attribute SpeakerNumber integer [0, 14] @attribute Sex integer [0, 1] @attribute F0 real [-5.211, -0.941] @attribute F1 real [-1.274, 5.074] @attribute F2 real [-2.487, 1.431] @attribute F3 real [-1.409, 2.377] @attribute F4 real [-2.127, 1.831] @attribute F5 real [-0.836, 2.327] @attribute F6 real [-1.537, 1.403] @attribute F7 real [-1.293, 2.039] @attribute F8 real [-1.613, 1.309] @attribute F9 real [-1.68, 1.396] @attribute Class {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10} @inputs TT, SpeakerNumber, Sex, F0, F1, F2, F3, F4, F5, F6, F7, F8, F9 @outputs Class