From http://archive.phonetics.ucla.edu/ :
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.
Contents of this site are licensed under a Creative Commons license. You are free to copy, distribute, or adapt these materials for noncommercial purposes, under the following conditions:
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