Sony 3-270-589-12 (1) User Manual

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Glossary
  
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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 supplied 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 time code 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 time code to 
eliminate the discrepancy between 
time code value and actual time by 
dropping two frames from the time 
code 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 SMPTE 
274M 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.
i.LINK
Another name for the IEEE1394-
1995 standards and their revisions. 
XDCAM uses the i.LINK interface to 
transfer DV streams by the AV/C 
protocol, and to read and write 
MPEG HD and DVCAM data files 
by FAM (file access mode).
Metadata
Information about the properties of 
video and audio content. XDCAM 
records metadata such as UMIDs and 
essence marks, and the supplied 
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 time code 
which ignores the difference in frame 
values between real time and the time 
code. Using this mode produces a 
difference of approximately 86 
seconds per day between real time 
and time code, 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 high-
resolution MPEG HD or DVCAM 
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 SMPTE 
259M 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.
Time code
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 time code is applied to 
NTSC system, and EBU time code 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