dubbing dubbing: Copy function of a sound source. High Speed Dubbing: High-speed dubbing function on dual cassette decks. CD-Dubbing: Copy function of a CD. Depending on the recording device, either CD-R or hard disk is possible. Similar entries A / V AB comparison mapping width fall time APR shielding absorber absorption absorption coefficient dispersion characteristics Beam angle sample rate/sampling frequency AC AC-3 signals AC coupling