The microphone in the late 1900s
- James West and Gerhard Sessler patented the electroacoustic transducer, an electret microphone in 1964.
- In the 1970s, both the dynamic and condenser mics were further enhanced for clearer sound recording and a lower sound level sensitivity.
- In the 1980s the first clip-on microphones were developed by Sennheiser.
- In the 1990s, Neumann introduced a condenser microphone designed for live performances which set a new standard for quality.
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