Speaker: ak. Vowel: y. n_form.: 3. F1-3:  325	1650	4000 BW1-3: 152	168	326
Speaker: ak. Vowel: i. n_form.: 5. F1-3:  268	2497	3241 BW1-3: 86	122	381
Speaker: ak. Vowel: u. n_form.: 4. F1-3:  326	528	2610 BW1-3: 176	511	187
Speaker: ak. Vowel: @. n_form.: 5. F1-3:  514	1396	2772 BW1-3: 130	134	203