Miniaturization is a very important issue that people must concern during design and production of the electronic components. The miniaturization of ECM (electret condenser microphone) needs the corresponding changes of ECM structure, dimensions, and circuit distribution. Such changes impact on the specifications of ECM. This paper makes discussions on the related effect of ECM miniaturization, which is useful for the design of mini-microphones.
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https://aes2.org/publications/elibrary-page/?id=13286
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