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IEEE MILESTONE AWARD

Unidyne and the rapid extinction of the Uniplex. The Unidyne design has proven so reliable that

Unidyne Microphones from the 1940s are still in operation, and Unidyne Microphones are still

being manufactured today.

The nomenclature “Unidyne” can be interpreted in multiple ways: Uni = one mic element; Uni

= “uni”directional pattern; Uni = unique. Dyne = dynamic mic element; Dyne = unit of force

used in acoustical measurement. S. N. Shure, the founder of Shure Incorporated, was a lifelong

student of language and often chose trademarks that had multiple meanings.

What features set this work apart from similar achievements?

The Unidyne Microphone was the rst directional microphone that used a single dynamic mic

element. Using a single element reduced the size, weight, and manufactured cost; increased

reliability; and signicantly improved acoustical performance. The Unidyne spawned even more

popular models. The Unidyne II, a smaller version of the Unidyne, was introduced in 1951.

The Unidyne III, grandchild of the Unidyne, was introduced in 1959. It is the most widely

used professional microphone in the world and has been the microphone of choice for every

U.S. President since Lyndon Johnson. And, in 2014, a Unidyne III Microphone is in use on the

International Space Station for live TV and Internet interviews with the crew.

Ben Bauer in his ofce, Huron Street, Chicago, Ilinois, ca. 1945