An electret microphone and companion preamplifier arranged to fit within telephone handsets for experimental evaluations are described. These studies were undertaken to determine the technical feasibility of using electronically supplemented electret transducers in telephone station sets. Extended use and testing under laboratory conditions show that such microphone-amplifer combinations perform satisfactorily.

Author: Nelson, J. R.
Affiliation: Bell Laboratories, Murray Hill, NJ
JAES Volume 22 Issue 2 pp. 100-102; March 1974
Publication Date: March 1, 1974 Import into BibTeX
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=2780

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