Prosody in Linguistics: Pitch and Fundamental Frequency Exploration
Delve into the nuances of pitch and F0 in linguistics with this comprehensive tutorial presented at ACL 2021. Learn about fundamental frequency, synthetic glottal waves, visualizations, and the impact of pitch in communication dynamics.
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Presentation Transcript
Prosody Lecture 5: Pitch and F0 Nigel G. Ward, University of Texas at El Paso Gina-Anne Levow, University of Washington Tutorial presented at ACL 2021
W. Wang et al. via Wikimedia Commons https://commons.wikimedia.org/wiki/File:Laryngeal- Reinnervation-Using-Ansa-Cervicalis-for-Thyroid-Surgery- Related-Unilateral-Vocal-Fold-pone.0019128.s002.ogv W. Wang et al, vial Wikimedia Commons https://commons.wikimedia.org/wiki/File:Laryngeal-Reinnervation-Using-Ansa- Cervicalis-for-Thyroid-Surgery-Related-Unilateral-Vocal-Fold-pone.0019128.s002.ogv
Fundamental Frequency F0= 150 Hz Fundamental frequency, F0 : cycles per second (Hertz, Hz) Period: Time lapse between repeating cycles F0 = 1 / period Synthetic glottal wave, Francisco Torreira
Basic Visualizations Waveforms F0plots Francisco Torreira
going up in pitch or down? Up. but not for everyone
A real waveform Praat F0(a proxy for pitch) https://www.fon.hum.uva.nl/praat/
A real waveform Praat F0(a proxy for pitch) Male or female voice? How do you know?
F0 Pitch Gaps Errors Differences Microprosody F0is a proxy for pitch
Missing pitch /s/ /s/ | legumes | are | a |good| source | of | vitamins | Unvoiced consonants have no pitch i.e., F0is not defined for consonants without vocal fold vibration
Errors | legumes | are | a |good| source | of | vitamins |
Microprosody /g/ /v/ | legumes | are | a |good| source | of | vitamins | F0can be perturbed by vocal tract constrictions. But humans don t perceive these as pitch dips.
Three Aspects Acoustic Measure Articulatory Mechanism Percept log F0 glottal cycles pitch
Three Aspects Acoustic Measure Articulatory Mechanism Percept log F0 glottal cycles pitch
Contents Introduction 4: Pitch Production Production, Perception 5: Pitch and F0 Classic Ling. Prosody 6. Loudness, Timing, etc. Technology 1 7: Phonation Types Para. & Prag. Functions 8: Exercises Speech Synthesis and Dialog 9: Pitch Perception Perspectives
Contents Introduction 4: Pitch Production Production, Perception 5: Pitch and F0 Classic Ling. Prosody 6. Loudness, Timing, etc. Technology 1 7: Phonation Types Para. & Prag. Functions 8: Exercises Speech Synthesis and Dialog 9: Pitch Perception Perspectives
