Duophonic sound was a trade name for a type of audio signal processing used by Capitol Records on certain releases and re-releases of monaural recordings issued during the 1960s and 1970s. == Origin == In the Duophonic process, mono recordings were reprocessed into a type of artificial stereo.
Duophonic sound was a trade name for a type of audio signal processing used by Capitol Records on certain releases and re-releases of monaural recordings issued during the 1960s and 1970s. == Origin == In the Duophonic process, mono recordings were reprocessed into a type of artificial stereo.
Source: Wikipedia "Duophonic" · CC BY-SA 4.0
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