Sony PDWHD1500 User Manual (PDW-HD1500 / PDW-F1600 Operation Manual for Firmwa - Page 192

Glossary 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. Clip A recording unit. Clips are created every time recording starts and stops. Clip list A list of locations in the material recorded on the disc, arranged in any order. Clip lists can be created with the scene selection function of this unit, and with the PDZ-1 Proxy Browsing Software. Composite video signal A video signal in which luminance and chrominance are combined along with timing reference "sync" information to make composite video. 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. 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. Essence mark A type of metadata that may be set for a specified frame. For more efficient searches, XDCAM equipment records essence marks as part of Non-RealTime metadata, and uses them to display thumbnails. HD tri-level sync An HDTV analog reference signal that applies to 59.94/50Hz systems. A sync signal defined in SMPTE274M with positive, negative, and zero values. HDSDI signal Abbreviation of HD Serial Digital Interface. A signal in the HDTV serial interface defined by SMPTE-292M. Metadata Information about the properties of video and audio content. XDCAM records metadata such as UMIDs and essence marks, and the PDZ-1 Proxy Browsing Software can be used to record information such as titles and comments. MXF Material eXchange Format. A file exchange format developed by the Pro-MPEG Forum. Equipment from different manufacturers can exchange files in this format. Non-audio General term for audio signals other than linear PCM, such as Dolby E 1) and Dolby Digital (AC-3).1) XDCAM can record non-audio as an input signal. 1) Dolby is a trademark of Dolby Laboratories. Non-drop-frame mode A mode of advancing timecode which ignores the difference in frame values between real time and the timecode. Using this mode produces a difference of approximately 86 seconds per day between real time and timecode, which causes problems when editing programs in units of seconds using the number of frames as a reference. Proxy AV data Low-resolution data with a video bandwidth of 1.5 Mbps and an audio bandwidth of 64 kbps per channel. This unit records proxy AV data automatically whenever highresolution MPEG HD data is recorded. Reference video signal A video signal that contains a sync signal or sync and burst signals, used as a reference for synchronization of video equipment. SDSDI signal SD Serial Digital Interface. An interface standardized as SMPTE259M which enables the transmission of an uncompressed digital component stream. S/N Signal-to-Noise ratio. The relation of the strength of the desired signal to the accompanying electronic interference, the noise. If S/N is high, sounds are reproduced with less noise and pictures are reproduced clearly without snow. Sub clip One of the sections which make up a clip list. A sub clip may be part of a clip or an entire clip. Thumbnail image A reduced still picture of video for display on a GUI screen. XDCAM creates thumbnail images from proxy video, and displays them as index pictures on GUI screens. Timecode A digitally encoded signal which is recorded with video data to identify each frame of the video by hour, minute, second and frame number. SMPTE timecode is applied to NTSC system, and EBU timecode to PAL and SECAM systems. UMID Unique Material Identifier. A standard (SMPTE-330M) for video and audio metadata. The Basic section of a UMID contains a globally unique number and a material number for the identification of recorded material. An optional section called the "Source Pack" contains information such as the time and location of recording. A UMID with the Basic section only is called a Basic UMID. A UMID with the Appendix 192 Glossary