The Quick Brown Fox...

In typing class, we used that old sentence "The quick brown fox jumped over the lazy dogs" in order to practice hitting every letter in the alphabet.

It occurred to me the other day that we need a similar paragraph - one that, when spoken, would yield a sample of every sound needed to pronounce every word in the English language.  The applications for this are infinite, but at the very least I can imagine a future where celebrities record this paragraph so that we can let the dulcet tones of their golden voices guide us to our destination using our GPS.

English isn't a tonal language, so even accounting for some variations in inflection it doesn't seem like this should be too hard.  It's 2011, people!  Someone get on this!

(PS, I'm fully prepared for a hundred e-mails pointing to a Wikipedia page that explains how this was accomplished in 1937 or something.)