In both the technology and the aesthetics of extending high fidelity reproduction to surround-sound, reproduction of natural ambience is crucial. The ‘quadraphonic’ attempt to reproduce four stereo-blended tracks, derived from multi-microphone mix-down, cannot provide this. Complete spherical directionality can however be encoded on to a minimum of two audio channels to produce acoustically acceptable surround-sound systems. Limitations are set both by the number of available loudspeakers and by the number of channels.
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References
Shannon, C. E., Bell Syst. tech. J., 27, 379, 623 (1948).
Gerzon, M., Wireless World, Dec. 1974 (in the press).
Poincare, H., Theorie Mathematique de la Lumiere II, Georges Carré, Paris 189, 282–285; 302.
Scheiber, P., J. Audio Engng Soc., 19, 835–9 (1971).
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Fellgett, P. Ambisonic reproduction of directionality in surround-sound systems. Nature 252, 534–538 (1974). https://doi.org/10.1038/252534b0
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DOI: https://doi.org/10.1038/252534b0
