Audio and audiovisual archives are at the crossroads of different fields of knowledge, yet they require common solutions for both their long-term preservation and their description, availability, use and reuse. Archivio Vi.Vo. is an Italian project financed by the Region of Tuscany, aiming to: (i) explore methods for long-term preservation and secure access to oral sources, and (ii) develop an infrastructure under the CLARIN-IT umbrella offering several services for scholars from different domains interested in oral sources. This paper describes the project's infrastructure and its methodology through a case study on Caterina Bueno's audio archive.