Canadian English

Canadian English names English varieties used in Canada, with variation across regions, communities and speakers. For a scientific account, a pronunciation feature must be operationalized and measured rather than treated as a property shared identically by every speaker. Sociolinguistics and acoustic phonetics provide complementary methods for those comparisons.

An acoustic study by Sky Onosson compared Canadian, American Western and American Northern speech through vowel durations and formant trajectories, examining Canadian raising and the effect of a following consonant's voicing.^[ref] A useful replication would record comparable words and contexts, align vowel intervals, and compare trajectories under a stated time normalization. That separates a pronunciation's changing acoustic shape from differences caused merely by speaking rate or the analysis point.

Canadian raising names a pronunciation pattern in which the starting portion of the diphthongs conventionally transcribed /aɪ/ and /aʊ/ is raised in particular contexts, especially before a voiceless syllable coda. The pattern is associated with Canadian English, while related effects also occur in other North American varieties.^[ref]

Comparing lout and loud in controlled contexts can illustrate a voiceless-versus-voiced following consonant, but an acoustic test should compare repeated tokens and their formant trajectories. Sky Onosson's dissertation separates changes in trajectory from the shortening of vowels before voiceless consonants; its abstract reports different cross-dialect patterns for the two diphthongs. A single midpoint or duration can therefore miss part of the phenomenon. Raising refers to vowel quality, not simply to a higher voice fundamental frequency.