FamilySearch Oral Genealogies: Family Search publishes the audio files, photographs, and the genealogies obtained from oral history interviews in many parts of the world, including Africa on their Genealogies page. This page includes access to a variety of different compiled genealogies (family trees), including oral genealogies. Oral Genealogies are spoken lineage-linked genealogies from localities throughout the world. Many localities have no written records and oral genealogies may be the only records available for genealogical research. To learn more about the FamilySearch African Oral Histories Project, see Cherie Bush and Russel S. Lynch, "Oral Genealogy in Africa: Preserving Critical Knowledge," IFLA World Library and Information Congress, Athens, Greece, June 15, 2019, http://library.ifla.org/2463/1/271-bush-en.pdf.
FamilySearch Online Resources to learn how to create oral histories
FamilySearch Apps to record oral histories
Charles Redd Center for Western Studies, Oral History Program
Kenneth Baldridge Oral History Collection, BYU Library (currently down for maintenance)
Fruits of Their Labors: Orchards in Utah Valley, BYU Library
The Cambodian Oral History Project, BYU Department of Asian and Near Eastern Languages
National Archives of Singapore Oral History Interviews