 Canadian raising is a vowel shift in many dialects of North American English where the diphthongs I and OW raised to mid-vowels before voiceless obstrants. Generally, the diphthongs I and OW have low vowels at their nucleus. In Canadian raising, the nucleus of the diphthongs change from the low vowel AH to a mid-love vowel. Let's listen to the raised variants of I and OW. 5, 5, lies, lice, rider, rider, loud, stout, gouge, coach. Canadian raising occurs before voiceless obstrants. Vowels before voiced obstrants are usually not raised. The more common pronunciation of OW is articulated with the tongue in a low position, whereas with Canadian raising, the tongue is raised to a mid position when the vowel precedes the voiceless consonants mentioned before. Although this phonological process is called Canadian raising, this name is not only restricted to Canada and not all Canadians share this feature. The raising of I and OW is also common in some regions of the Northern US, such as New England, the In the North, Philadelphia and New York City. In the standard British-English phonological dialect RP, Canadian raising does not occur.