Many thanks to Mercedes Cabrera for this link: A phonetic description of annoying teenage sounds.
Thanks to Pip Ferguson for this link. It may mess with your mind.
Finally, we have wall-to-wall Tudors on the BBC at the moment. One of the programmes I watched was about Thomas Cromwell. It was presented by Prof. Diarmaid MacCulloch. I wonder why he insists on pronouncing Anne Boleyn’s surname as ˈbɒlɪn, when he has two perfectly acceptable versions in bəˈlɪn and ˈbʊlən to choose from.