Observed arrival · 2026-10-28
Phonatomy links IPA to the vocal tract
A free, browser-based study kit connects American English IPA with the anatomy and physiology that produce speech sounds.
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- Speech-language pathology students studying American English phonetics
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- Word-to-IPA draws on the CMU Pronouncing Dictionary, converted to the chart’s symbol conventions.
Field notes
The sound charts group consonants by place, manner, and voicing, and vowels by tongue height and advancement. Word-to-IPA uses the CMU Pronouncing Dictionary for broad General American output; the page notes that this is not a transcription of any particular speaker and omits allophones such as the flap in “butter.” Its audio uses browser-generated formant and noise models, and its vocal-tract diagrams are simplified side views.
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