The performance requirements of a studio-quality condenser microphone are received in light of present recording, broadcast, and sound reinforcement practice. Consideration is given to both electroacoustical performance and environmental stability. A condenser transducer is described which makes use of refined electret technology and demonstrates performance advantages over similar conventional, externally biased configurations. The details of a new RLC "Lossy Ladder" acoustical phase shift network are presented in basic terms as applied to the design of a cardioid unidirectional microphone. Finally, a unique impedance conversion electronics section is described in terms of noise level, load driving capability, distortion, and environmental stability.

Authors: Bevan, William R.; Seeler, Charles E.; Schulein, Robert B.
Affiliation: Shure Brothers, Evanston, IL
AES Convention: 59 (February 1978) Paper Number: 1329
Publication Date: February 1, 1978 Import into BibTeX
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=3025

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