Changing Pitch Without Changing Vowel
The explicit discrimination node for terminal understanding 1. Say the same vowel at a high and a low pitch: fundamental frequency changes, formants do not. Say two vowels at one pitch: formants change, fundamental frequency does not. This is the node that makes the separation testable rather than merely asserted, and it is the guard against the student reading every voice result in this path as a result about pitch.
Questions this Concept answers
- Why can a speaker sing one vowel across an octave without listeners hearing a different vowel?
The Source-Filter Model of Speech Production in Phonetics
The source-filter model of speech production, a foundational theory in acoustic phonetics, describes vowel sound generation as two independent stages: a source (periodic glottal airflow from vocal fo…