Analysis of the Four Dimensions of Vowel Variation in English: An Illustration Using Internet-Sourced Speech Data
Abstract
This study investigates the multifaceted nature of vowel variation in English accents by applying J.C. Wells' seminal four-dimensional framework, which categorizes differences into systemic, realizational, lexical, and distributional variation. As traditional Received Pronunciation (RP) gives way to modern Standard Southern British English (SSBE), this research updates the phonetic descriptions of these dimensions using contemporary data. This research employs a digital sociophonetic approach, utilizing internet-sourced speech recordings from digital archives and naturalistic YouTube corpora to illustrate these variations. The primary research questions explore how these four dimensions manifest in modern speech and how digital media influences contemporary vowel shifts. The analysis demonstrates that while the structural framework remains highly effective for categorizing dialectal differences, significant realizational shifts are evident in modern standards. Furthermore, this study validates the use of internet-sourced audio as a legitimate and vital resource for illustrating the dynamic "living" vowel systems of English, bridging the gap between classic phonetic theory and digital-age linguistic reality.
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