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Journal Article

An Artificial Stereophonic Effect Obtained from a Single Audio Signal

Authors: Schroeder, Manfred R.

Journal of the Audio Engineering Society · Volume 6 · Issue 2 · pp. 74–79 · April 1958

Abstract

In 1954, H. Lauridsen reported an experiment which gave a remarkable stereophonic effect using a single input signal. The signal was fed to both ears once directly in phase, and a second time (delayed by 50 to 150 msec) in anti-phase. This experiment is recognized as resulting in two different intensity vs frequency responses in the paths to the two ears, namely, two interlaced comb filters. The presence of such different responses, rather than the time delay, is postulated, from the results of the experiments described here, as the essential prerequisite that stereophonic effects be obtained from a single input signal.

Details

Publication
Journal of the Audio Engineering Society
Volume
6
Issue
2
Pages
74–79
Publication date
April 6, 1958
Affiliation
Bell Telephone Laboratories, Inc., Murray Hill, NJ (See document for exact affiliation information.)
Type
Journal Article