Dictionary of Digital Media Topics include Web Development, Audio, Video, Graphics, Software and Hardware. See also the Music Glossary. Search: Search (clear search) All Categories Music Tech hH.261H.264H.265Haas effect (Precedence effect)halftoneHamster switchhandlehard diskHard-Disk Recorderhardwarehardware keyharmonicharmonic distortionharmonic overtone serieshashHDRHDSLheadheadroomheat sinkHelmholtz, HermannhenryhertzHertz, Heinrich RudolfHEVChexadecimalHFSHierarchical File SystemHigh-Data-Rate Digital Subscriber LineHigh Efficiency Video Codinghigh-pass filterHigh Sierra formathome pageHTMLHTML Coded CharactersHTTPHTTP cookieHTTPShyperlinkHypertext Markup LanguageHypertext Transfer ProtocolHypertext Transfer Protocol, SecureHz