speaker_data
A data frame with 10,697 rows and 8 columns
- speaker
Speaker ID column
- vowel
CMU Dictionary vowel class
- plt_vclass
Modified Labov-Trager vowel class
- ipa_vclas
IPA-like vowel class
- word
Word that the vowel appeared in
- F1, F2, F3
The first, second and third formants, in Hz
