ENG507 Phonetics and Phonology Assignment 1 for Fall 2026 covers Lectures 01-11 and carries 20 marks. The assignment asks one two-part question on the topic of overlapping gestures and co-articulation, with 10 marks for each part. Check VULMS for the due date. The solution file linked below answers both parts with the two required examples for each.
What Does the Solution File Cover?
What Are Overlapping Gestures in Speech Production?
A gesture is a coordinated movement of articulators, such as the lips, the tongue tip, the tongue body, the velum or the larynx, towards a target constriction in the vocal tract. Gestures are not produced one after another in neat blocks. The gesture for the next sound begins before the gesture for the current sound has finished, so neighbouring gestures overlap in time and speech comes out smooth and blended. Two examples prove the point. The phoneme /k/ is articulated further forward in “key” because the tongue body gesture for the front vowel /iː/ overlaps the closure, while in “car” the back vowel /ɑː/ pulls the same closure further back. In “ban”, the velum lowering gesture for /n/ starts during the vowel, so the vowel comes out nasalized as [æ̃]. The same question and answer format is used in the MTH202 Assignment 1 solution for Fall 2026.
What Is Co-articulation and How Does It Create Allophones?
Co-articulation is the influence that neighbouring sounds have on the articulation of a speech sound. Because gestures overlap, a phoneme is realized differently in different contexts, and these contextual variants are its allophones. The influence works in two directions: anticipatory co-articulation, where a sound takes on features of a following sound, and perseverative co-articulation, where it keeps features of a preceding sound. The phoneme /t/ shows the effect clearly: aspirated [tʰ] in “top”, unaspirated [t] after /s/ in “stop”, and a flap [ɾ] between vowels in American English “butter”. Place assimilation of /n/ is the second example: /n/ becomes bilabial [m] in “impossible” before /p/ and velar [ŋ] in “bank” before /k/.
How Do You Download the Solution File?
You can download the complete solution file from Google Drive using the link below. It contains the full question, the explanation of overlapping gestures with two examples, and the definition of co-articulation with two examples of allophonic variation.
Frequently Asked Questions
What Is the Difference Between Overlapping Gestures and Co-articulation?
Overlapping gestures describe the articulatory mechanism: the movements for neighbouring sounds share the same stretch of time. Co-articulation describes the result: sounds are shaped by their neighbours. Overlap is the cause, and co-articulation is the audible effect.
Why Does /k/ Sound Different in “Key” and “Car”?
Because the vowel gesture overlaps the consonant closure. The front vowel in “key” pulls the /k/ closure forward, while the back vowel in “car” pulls it back. The phoneme stays /k/, but its place of articulation shifts with the neighbouring vowel.
How Does Co-articulation Explain the Three Forms of /t/?
The context decides the realization. Word initial /t/ in a stressed syllable is aspirated, /t/ after /s/ loses its aspiration because of the preceding fricative, and /t/ between vowels in American English weakens to a flap. All three are allophones of the same phoneme /t/.
Last updated: November 2026.
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