Stefan Meltzer studied electrical engineering at the Friedrich-Alexander University in Erlangen, Germany. In 1990 he joined the Fraunhofer Institute for Integrated Circuits (IIS) in Erlangen, Germany. After working in the field of IC design for several years, Stefan became the project leader for the development of the WorldSpace Satellite Broadcasting system in 1995 and in 1998 of the XM Satellite Radio broadcasting system. His team was responsible for the system design, chip set design, field trials and development of a reference signal generator.

In 2000 he joined Coding Technologies in Nuremberg as Vice President for business development, Germany. His responsibilities included broadcasting and consumer electronics. During his time at Coding Technologies HE AAC was accepted in numerous broadcasting standards and applications.

After Coding Technologies was acquired by Dolby Labs, Stefan joined Iosono as CTO in April 2008. From January 2010, Stefan worked as independent technology consultant with the main focus on audio and multimedia. In this role he supported Fraunhofer IIS in the business development and marketing activities within the TV broadcast market. In April 2018, Stefan joined Fraunhofer IIS as Business Development Manager.