Abstract
This paper presents phonetics of Kannada language and their classification based on time-frequency analysis. Each distinct sound of speech called phoneme is produced by changing the shape of the vocal tract tube. The resonances of the vocal tract tube called formant frequencies are responsible for producing different phonemes. It is observed that vowels (Swaragalu in Kannada) have clear formant structure and they are about 3 to 5 formant frequencies of significance below 5000 Hz. They are characterized by having high energy, maximum airflow and periodicity and are classified based on the location of formant frequencies. Consonants (Vyanjanagalu in Kannada) are classified based on voicing, place of articulation and manner of articulation. Time-frequency analysis reveals that there are totally 37 distinct phonemes in Kannada language.
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