ABSTRACT
An audio journalist and inventor who was awarded nine patents in the field of audio and communication techniques, including time-delay spectrometry (TDS), Heyser was by training a scientist at the Jet Propulsion Laboratory of the California Institute of Technology. In addition to his work on TDS, outlined in a 1967 Audio Engineering Society journal article, he published numerous other articles in both technical and popular audio magazines, and was widely known for his patience and ability to clearly present and communicate new and complex technical ideas. Heyser generously aided the AES not only through his technical contributions, but also through his service to its growth and organizational development as an Audio Engineering Society governor and an AES silver medal recipient. He died shortly before he was able to assume office as the president of the society.
