Sony HVR1500A Product Manual (HVE-1500A Operating Manuals) - Page 106

Glossary A/B roll editing An editing method that uses two or more playback VCRs to create special effects such as dissolve and wipe, and uses one record VCR to record the results of the editing. Using an editing control unit allows efficient control of the VCRs and very precise editing. AES/EBU A standard established jointly by the AES (Audio Engineering Society) and EBU (European Broadcasting Union) for serial transmission of digital audio. Two channels of audio can be transmitted via a single connector. B-Y signal A chrominance signal determined by subtracting the Y (luminance) signal from the B (blue) signal. One of the component signals. Capstan A drive mechanism that moves the tape at a specified speed. Its rotation normally synchronizes with a reference sync signal. Chrominance signal Color signal containing color information such as hue and saturation. Also called C signal. Component signals (YRB) A video signal consisting of a luminance signal (Y) and two chrominance signals (R-Y, B-Y). Composite video signal A video signal in which luminance and chrominance are combined along with timing reference "sync" information to make composite video. Condensation Condensation of moisture on the tape transport mechanisms of VCRs including the head drum. If moisture condenses on the head drum, the tape adheres to the drum and causes malfunction. Down-conversion The process of converting a highdefinition video signal to a lower resolution video signal. Together with the resolution conversion, the screen format (aspect ratio) is also converted. Drop frame mode SMPTE timecode runs at 30 frames/ second, while the NTSC color television system runs at about 29.97 frames/second. Drop-frame mode adjusts the running of timecode to eliminate the discrepancy between timecode value and actual time by dropping two frames from the timecode value at the beginning of each minute except every tenth minute. EBU timecode Timecode complying with the EBU (European Broadcasting Union) standard. Edge cropping Method of down-converting a 16:9 HD signal to 4:3 video by cropping the side edges. E-E mode Electric-to-Electric mode. When you operate a VDR in E-E mode, input video and/or audio signals pass through electric circuits only and then come out from the output connectors, without passing through electromagnetic conversion circuits such as recording heads. HD-SDI signal Abbreviation of HD Serial Digital Interface. A signal in the HDTV serial interface defined by SMPTE 292M. HD tri-level sync An HDTV analog reference signal that applies to 59.94/50Hz systems. A sync signal defined in SMPTE 274M with positive, negative, and zero values. Head drum A metal cylinder to which a video head is attached. This drum is rotated at high speeds in synchronization with the sync signal during recording and playback. Linear editing Editing while playing back video and audio signals recorded on video tape. See also "Non-linear editing." Loading When being loaded, the tape is pulled out of the cassette case and threaded along the specified tape path and wrapped round the drum to be ready for recording or playback. Generally, this is done automatically when you place the cassette at the cassette entrance of the VCR. Also called threading. Loop-through connection A connection which allows a signal input to an input connector to pass through the unit and exit from an output connector as input to external equipment. Also called bridging connection. Luminance signal The signal that determines the brightness of the picture. Also called Y signal. One of the component signals. MPEG-2 Abbreviation of Moving Picture Experts Group phase 2. A digital compression standard for video and audio, principally used for DVD Appendix 106 Glossary