Several GLAM institutions have audio files in their collections. While image files are very popular in Commons, audio are much less frequent and raise several specifics challenges.

Organisation Description Contact Commons
Wikimedia Israel National Library of Israel commons:User:National_Library_of_Israel/Audio
Xeno-Canto Birdsong recordings by volunteer enthusiasts. Fæ/Projects/Xeno-canto
BBC Speakerthon
Wikimedia NL Netherlands Institute for Sound and Vision, project page in Dutch Jesse de Vos, Sebastiaan ter Burg commons:Category:Sounds_from_Geluid_van_Nederland