H - Electricity – 04 – R
Patent
H - Electricity
04
R
179/3, 179/42
H04R 3/12 (2006.01) G10K 15/10 (2006.01) H04R 5/04 (2006.01) H04S 5/00 (2006.01)
Patent
CA 1067828
AUDIO SYSTEM WITH ENHANCED SPATIAL EFFECT Abstract of the Disclosure An audio system comprising a record player, tape deck, microphones, or other signal source which generates stereo signals supplied to two main speakers for reproduction; the stereo signals are added together to afford an intermediate signal which is subjected to at least two successive equal delays to generate a plurality of delayed signals which are summed with the intermediate signal in predetermined amplitude and phase relation to generate a spatial effect signal that is essentially free of noticeable reverberations or echoes. This spatial effect signal is reproduced by a separate speaker in the same listening space as the main speakers to add ambience and diffuseness to the total sound field. In the preferred construction two delayed signals are employed, delay is effected with the signals in digital form, and the summing ratio for the intermediate, first delayed, and second delayed signals is approximately 1:2:1 with the intermediate signal and the second delayed signal in phase opposition. A corresponding monophonic system is also disclosed.
276802
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