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DUDOGNON JEAN PIERRE
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DUDOGNON JEAN PIERRE
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Priority to FR7200004ApriorityCriticalpatent/FR2166239A1/fr
Publication of FR2166239A1publicationCriticalpatent/FR2166239A1/fr
H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation
H04S5/02—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals