This paper describes a quadraphonic synthesizer able to translate two-channel sources into a four-channel presentation. Through pre-encoding over the stereo left and the stereo right signals, it is possible to obtain a 360° sound dispersion with over 24 dB interchannel separation.

Authors: Ito, Ryosuke; Takahashi, Susumu; Hirano, Kouichi
Affiliation: Sansui Electric Co., Ltd., Tokyo, Japan
AES Convention: 49 (September 1974) Paper Number: 996
Publication Date: September 1, 1974

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