Voiceless consonant in the context of "Obstruent"

In linguistics, vowel length is the perceived or actual duration of a vowel sound when pronounced. Vowels perceived as shorter are often called short vowels and those perceived as longer called long vowels.

On one hand, many languages do not distinguish vowel length phonemically, meaning that vowel length alone does not change the meanings of words. However, the amount of time a vowel is uttered can change based on factors such as the phonetic characteristics of the sounds around it: the phonetic environment. An example is that vowels tend to be pronounced longer before a voiced consonant and shorter before a voiceless consonant in the standard accents of American and British English.

In linguistics, a tenuis consonant (/ˈtɛn.juːɪs/ or /ˈtɛnuːɪs/) is an obstruent that is voiceless, unaspirated and unglottalized.

In other words, it has the "plain" phonation of [p, t, ts, tʃ, k] with a voice onset time close to zero (a zero-VOT consonant), as Spanish p, t, ch, k or English p, t, k after s (spy, sty, sky).

The pronunciation of the digraph ⟨wh⟩ in English has changed over time, and still varies today between different regions and accents. It is now most commonly pronounced /w/, the same as a plain initial ⟨w⟩, although some dialects, particularly those of Scotland, Ireland, and the Southern United States, retain the traditional pronunciation /hw/, generally realized as [ʍ], a voiceless "w" sound. The process by which the historical /hw/ has become /w/ in most modern varieties of English is called the wine–whine merger. It is also referred to as glide cluster reduction.

Before rounded vowels, a different reduction process took place in Middle English, as a result of which the ⟨wh⟩ in words like who and whom is now pronounced /h/. (A similar sound change occurred earlier in the word how.)

Canadian raising (also sometimes known as English diphthong raising) is an allophonic rule of phonology in many varieties of North American English that changes the pronunciation of diphthongs with open-vowel starting points. Most commonly, the shift affects /aɪ/ or /aʊ/ , or both, when they are pronounced before voiceless consonants (therefore, in words like price and clout, respectively, but not in prize and cloud). In North American English, /aɪ/ and /aʊ/ usually begin in an open vowel [ä~a], but through raising they shift to [ɐ] , [ʌ] or [ə] . Canadian English often has raising in words with both /aɪ/ (height, life, psych, type, etc.) and /aʊ/ (clout, house, south, scout, etc.), while a number of American English varieties (such as Inland North, Western New England, and increasingly more General American accents) have this feature in /aɪ/ but not /aʊ/. It is thought to have originated in Canada in the late 19th century.

In the U.S., aboot [əˈbut], an exaggerated version of the raised pronunciation of about [əˈbʌʊt], is a stereotype of Canadian English.