Vowels.

Vowel Perception and Production. by: (Language materials, printed)

Vowel inherent spectral change by: (Language materials, printed)

Biometrics.

Signal, Image and Speech Processing.

Vowels.

Psycholinguistics.

Spectral analysis (Phonetics)

Computational linguistics.

Engineering.

Acoustics.

Language Translation and Linguistics.

Phonetics.

Speech perception.

Phonology.