This article considers the benefits of constructivist approaches to the history of audio fo- rensics. It is argued that science and technology studies (STS) open up a new avenue of research on historical uses of sound recordings in the communist security apparatus and offer a perspective that is considerably different from the mainstream historiographical treatment of the state audio surveil- lance.
This claim serves as a basis for discussing the Czechoslovak programme of audio forensics (1975-1989).