The first Oscilla audiometer was developed by Egon kjær, an audiologist in Aarhus, Denmark in 1959. Initially, Oscilla audiometers were used by Danish school nurses for hearing screening tests. The product range was expanded during the 1960's, 1970's and 1980's and the scope was gradually extended from screening solutions to also include diagnostic and clinical audiometers.

In 1992, Oscilla was acquired by the Danish company Inmedico A/S, which was owned by Jens Axelgaard. Inmedico A/S continued to renew and develop the product range during the 1990's and 2000's. During the 1990's, the popular SM-series of compact screening and diagnostic audiometers was launched and in 2004 the very first PC-based USB audiometers (USB100 and USB300) were launched together with the first versions of Oscilla AudioConsole® software.

In 2011, Inmedico A/S and the Oscilla product range were acquired by Otometrics and thereby became a part of the industry leader in diagnostic solutions for hearing professionals.

In 2017, Otometrics & Oscilla was acquired by Natus Medical, and Oscilla was moved from the city of Aarhus to Copenhagen. 

In 2021, Oscilla became an independent company and moved back to the city of Aarhus, and is today owned by former employees Ulrik Smed, Joachim Boll and Tom Voss.

In 2022, Oscilla passed the MDR EU 2017/745 approval for the 3^rd generation of the Oscilla USB audiometers A30, A50 & A60.