... suchanalog-to-digital converter Dictionary of Video and Television Technology 10as automatic gain, filtering and black level clamp-ing. An ADC for digitizing video must be capable of sampling at 10 to ... Signal.Audio /Video Support System (AVSS) In DVI runtimesoftware, the software package that plays motion video and audio.audio /video switcher See Switcher.audio-follows -video An advanced feature of a ... VCRs, the angle the video heads makewith the tracks on the videotape. Misalignment of- ten causes distortion, signal loss, video noise and snow. May also refer to TV tuners and IF amplifiersoperating...