"Audio excerpts" refer to short sections or portions of audio recordings. It means taking out or extracting certain parts from an audio recording to use or listen to separately. Full definition
An informative title, a relevant image, a compelling story, a video / audio excerpt from industry experts, or a shocking statistic, followed by appealing learning objectives. (swiftelearningservices.com)
Archival supplements include audio excerpts from Bogdanovich's 1972 interview with Hawks and an interview with novelist and screenwriter Borden Chase. (parallax-view.org)
That's followed with audio excerpts of Chaplin reading from Footlights (2 min.) (collider.com)