Duophonic

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For the record company of the same name, see Duophonic Records

• In synthesizers, capable of sounding two voices, or notes, at a time. Compare: monophonic, polyphonic.

• Duophonic is also a term used to refer to a precess by which a monaural recording is turned into a kind of fake "stereo" by splitting the signal into two channels, de-synchronizing them by fractions of a second, and emphasizing one's bass and the other's treble. This term was used as a trade name for the process by Capitol Records for re-releases of mono recordings in the early 1960s.