Audiovisual Dictionary Get to know the terms of the audiovisual ecosystem TODAS0-9ABCDEFGHIJKLMNOPQRSTUVWXYZ 4:2:2:4 Similar to 4: 2: 2 but with the addition of the Key signal. Our Services Medical CareAudiovisual ConsultingVideo Distribution NetworksTV Production Centres BACK TO INDEX 4:2:2:4 Key ← 4:3 4:2:0 →