Topic summary
Duophonic
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.
Topic summary
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.