Eight-to-fourteen modulation (EFM) is a data encoding technique – formally, a channel code – used by compact discs (CD) and pre-Hi-MD MiniDiscs. EFMPlus is a related code, used in DVDs and SACDs. EFM and EFMPlus were both invented by Kees A. Schouhamer Immink.
Read more about Eight-to-fourteen Modulation: Technological Classification, How It Works, EFMPlus
Famous quotes containing the word modulation:
“Every accent, every emphasis, every modulation of voice, was so perfectly well turned and well placed, that, without being interested in the subject, one could not help being pleased with the discourse; a pleasure of much the same kind with that received from an excellent piece of music. This is an advantage itinerant preachers have over those who are stationary, as the latter can not well improve their delivery of a sermon by so many rehearsals.”
—Benjamin Franklin (1706–1790)