How is /ɑ:/ realized in British English: [ɑː] or more relaxed than [ɑː]?

pronunciation british-english phonology phonetics vowels

Solution 1:

As a native speaker of British English (Surrey), I pronounce all those words with a fronted vowel [ɑ̟]. It's also a bit raised. In fact, all the people around me pronounce them with [ɑ̟]. [ɑː] is considered too "posh" in my neck of woods.

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