The IPA pronunciation for human is described as IPA(key): /ˈçjuː.mən̩/. Unfortunately, the ç does not appear on the IPA page.
It is an IPA symbol, but nobody has bothered to include it in that particular page. It is a voiceless palatal fricative, like the German 'ch' in ich or the Japanese 'h' in hito. It is the palatalized version of /x/ (loch, machen, ach). —Stephen(Talk) 14:19, 27 May 2011 (UTC)