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Convention Paper

Nonlinearities in Condenser Microphone Electronics; Design Considerations for New Solid-State Microphones

Authors: Josephson, David L.

AES Convention 89 · Paper 2983 · September 1990

Abstract

During the design of a new microphone, the performance of condenser microphones made from the 1930s to date was reviewed. Some surprising shortcomings were discovered in the distortion characteristics of many modern FET-input microphones. A further investigation was conducted of the performance of historically valued vacuum-tube microphone electronics, and comparisons made with modern types. Spectral analysis of distortion products in the time domain reveals the source of many of the limitations in FET circuit topologies. This has led to improvements in current designs and suggestions for future research.

Details

Published in
AES Convention 89
AES Convention
89
Paper number
2983
Publication date
September 6, 1990
Session subject
Transducers: Microphones and Acoustic Measurements
Affiliation
Josephson Engineering, San Jose, CA (See document for exact affiliation information.)
Type
Convention Paper