So sánh phương pháp

	Sociophonetic Analysis	Apparent-Time Analysis
Lĩnh vực	Ngôn ngữ học	Ngôn ngữ học
Họ	Process / pipeline	Process / pipeline
Năm ra đời	2006	1963
Người khởi xướng	Sociophoneticians (William Labov; Paul Foulkes; Erik R. Thomas)	William Labov
Loại	Workflow correlating acoustic phonetic measurement with social factors	Inferential design for detecting language change in progress
Công trình gốc	Foulkes, P., Scobbie, J. M., & Watt, D. (2010). Sociophonetics. In W. J. Hardcastle, J. Laver, & F. E. Gibbon (Eds.), The Handbook of Phonetic Sciences (2nd ed., pp. 703–754). Wiley-Blackwell. ISBN: 9781405145909	Labov, W. (1963). The social motivation of a sound change. Word, 19(3), 273–309.
Tên gọi khác	Sociophonetics, Sociophonetic Variation Analysis, Phonetic Variation Analysis	Apparent-Time Construct, Apparent-Time Hypothesis, Age-Stratified Change Analysis
Liên quan	4	4
Tóm tắt	Sociophonetic analysis sits at the intersection of acoustic phonetics and variationist sociolinguistics. It applies the precise, quantitative measurement of phonetic variables — vowel formants, voice onset time (VOT), the spectral moments of /s/, and many others — to socially structured samples of speech, then correlates those measurements with social factors such as age, social class, gender, ethnicity, and region. The result is a fine-grained, statistically defensible account of how phonetic detail carries social meaning and how it patterns across communities and across time, increasingly built on large-scale, automated measurement.	Apparent-time analysis is the foundational variationist method for detecting language change in progress without waiting for time to pass. Introduced by William Labov in his 1963 study of Martha's Vineyard, it compares the speech of speakers of different ages sampled at a single moment and treats the age dimension as a proxy for historical time: if younger speakers use a variant more than older speakers, that age gradient is read as evidence of change unfolding across generations. The inference rests on the apparent-time hypothesis — that an individual's vernacular is largely fixed in adolescence and remains stable through adult life — so that the speech of today's seventy-year-olds reflects the community norms of roughly fifty years ago.