Another amazing resource:
Welcome to the UCLA Phonetics Lab Archive. For over half a century, the UCLA Phonetics Laboratory has collected recordings of hundreds of languages from around the world, providing source materials for phonetic and phonological research, of value to scholars, speakers of the languages, and language learners alike. The materials on this site comprise audio recordings illustrating phonetic structures from over 200 languages with phonetic transcriptions, plus scans of original field notes where relevant.
It was a project of the late Peter Ladefoged, a great phonetician and teacher about whom you can read some reminiscences (including a mention of his work as linguistic consultant on the film My Fair Lady) at the MetaFilter post from which I got the link.