Rudolf Müller is a historian and works for Memoriav, the Association for the preservation of the audiovisual heritage of Switzerland, since 2001. He is responsible for the projects in the fields of sound and radio. Prior to this, he worked in the Swiss Radio SRF, where he was involved in a project to secure and catalogue the oldest radio documents from the 1930s to 1950s on lacquer discs and subsequently for digitizing ¼ inch tapes.