How do I get QuickTime Player to read ogg audio files?

For Quicktime player to play it, it needs to be converted

to one of the formats listed here:

http://support.apple.com/kb/HT3775

Otherwise, you will need to use different player software.

Perian adds an audio type called "Xiph Vorbis". That apparently includes Wikipedia pronunciations, since they work for me (in Safari).