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Sound reproduction in which signals from two sources are fed to four speakers in such a way as to give a partial effect of quadraphony.
1970s; earliest use found in Gordon King (b. 1922).
pseudoquadraphony/ˌs(j)uːdə(ʊ)kwɒˈdrɒfəni/ /ˌs(j)uːdə(ʊ)kwɒˈdrɒf(ə)ni/ /ˌs(j)uːdə(ʊ)ˈkwɒdrəˌfɒni/
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