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Convention Paper

Sound Transmission with Free Propagating Infrared Light, Part 1: Continuous Modulation Techniques

Authors: Werner, Erhard

AES Convention 71 · Paper 1879 · March 1982

Abstract

Systems using infrared light as a carrier of sound signals have been introduced in 1975, being based on highly efficient and low cost semiconductor elements. Frequency modulation of subcarriers modulating the light intensity was chosen as the appropriate technique. Systems with high audio quality and up to nine channels have been developed, including interesting new applications and combinations being launched in 1982.

Details

Published in
AES Convention 71
AES Convention
71
Paper number
1879
Publication date
March 6, 1982
Session subject
Studio Techniques and Transducers
Affiliation
Sennheiser electronic, Wedemark (See document for exact affiliation information.)
Type
Convention Paper