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Alveolar and Velar Stops (2) • In the first group of six slides the stop in the “C” is /d/ whilst in the second group of six slides the “C” is /g/ • For each consonant the “V” context is varied, with the vowels /i: I 6: o: 3: @/ following in the same syllable. • These tokens are all spoken at a normal speaking rate. Alveolar and Velar Stops (4) Stop: /d/ Vowel context: /i:/ Burst F2: 1700 Hz Alveolar and Velar Stops (6) Stop: /d/ Vowel context: /6:/ Burst F2: 1700 Hz Alveolar and Velar Stops (3) • To simplify reading the spectrograms, continuous F1, F2 and F3 tracks have been superimposed over the spectrograms. This has been done by hand to avoid algorithm errors that commonly affect formant tracks across consonants in most formant tracking software. • A blue cross marks to acoustic feature that will mostly attend to in this lecture (measured to nearest 50 Hz). Alveolar and Velar Stops (5) Stop: /d/ Vowel context: /I/ Burst F2: 1750 Hz Alveolar and Velar Stops (7) Stop: /d/ Vowel context: /o:/ Burst F2: 1700 Hz 8
Alveolar and Velar Stops (8) Stop: /d/ Vowel context: /3:/ Burst F2: 1900 Hz Alveolar and Velar Stops (10) Data summary for /d/ • Frequency of this burst resonance feature varied by 400 Hz (1500-1900 Hz) • Most tokens were at 1700-1750 Hz • /3:/ at 1900 Hz • /@/ at 1500 Hz Alveolar and Velar Stops (12) Stop: /g/ Vowel context: /I/ Burst F2: 2200 Hz Alveolar and Velar Stops (9) Stop: /d/ Vowel context: /@/ Burst F2: 1500 Hz Alveolar and Velar Stops (11) Stop: /g/ Vowel context: /i:/ Burst F2: 1950 Hz Alveolar and Velar Stops (13) Stop: /g/ Vowel context: /6:/ Burst F2: 2000 Hz xxx 9
Page 1 and 2: Speech Acoustics Acoustics of Coart
Page 3 and 4: Phoneme Inventory Effects (3) • I
Page 5 and 6: Coarticulation and Resonance (3)
Page 7: Schwa (4) Schwa (6) The three fille
Page 11: Alveolar and Velar Stops (20) • T

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