Conveniently, I wrote on that exact issue too: https://www.twilio.com/blog/2013/08/the-pronunciation-challenge.html https://www.twilio.com/blog/2013/08/the-pron

Conveniently, I wrote on that exact issue too: https://www.twilio.com/blog/2013/08/the-pronunciation-challenge.html https://www.twilio.com/blog/2013/08/the-pronunciation-challe... (It appears some of the Soundcloud links are broken, but check out my account there for the full samples.)