Sony HDR-UX20 Operating Guide - Page 145

Glossary, 1ch surround sound, AVCHD format, Dolby Digital, Dolby Digital 5.1 Creator, MPEG-4 AVC/H.264 - rating

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Glossary x 5.1ch surround sound A system that plays back sound on 6 speakers, 3 at the front (left, right and center) and 2 at the rear (right and left) with an additional low-pass subwoofer counted as a 0.1 channel for frequencies of 120 Hz or lower. x AVCHD format A high definition digital video camera format used to record an HD (high definition) signal using the MPEG-4 AVC/H.264 format. x Dolby Digital An audio encoding (compression) system developed by Dolby Laboratories Inc. x Dolby Digital 5.1 Creator Sound compression technology developed by Dolby Laboratories Inc. which compresses audio efficiently while preserving high sound quality. Sounds are compressed effectively with high quality sound, and it enables producing 5.1ch surround sound. x DVD format A format used to record an SD (standard definition) signal on 8 cm DVD discs. x JPEG JPEG stands for Joint Photographic Experts Group, a still image data compression (data capacity reduction) standard. Your camcorder records still images in JPEG format. x MPEG MPEG stands for Moving Picture Experts Group, the group of standards for the coding (image compression) of video (movie) and audio. There are MPEG1 and MPEG2 formats. Your camcorder records movies with SD (standard definition) image quality in MPEG2 format. x MPEG-4 AVC/H.264 The latest image coding format standardized jointly by two international standardization organizations, the ISO-IEC and the ITU-T, in 2003. Compared with the conventional MPEG2 format, MPEG-4 AVC/H.264 has more than twice the efficiency. Your camcorder employs MPEG-4 AVC/H.264 to encode high definition movies. x Thumbnail Reduced-size images which enable you to view many images at the same time. The VISUAL INDEX screen, the Film Roll Index screen and the Face Index screen use a thumbnail display system. x VIDEO mode One of the recording formats you can select when using a DVD-RW with SD (standard definition) image quality. VIDEO mode provides excellent compatibility with other DVD devices. x VBR VBR stands for Variable Bit Rate, the recording format for automatically controlling the bit rate (the volume of recording data in a given time segment) according to the scene being recorded. For fast-moving video, a lot of media space is used to produce a clear image, so the recording time to the media shortens. x VR mode One of the recording formats you can select when using a DVD-RW with SD (standard definition) image quality. VR mode enables editing (deleting or sequence rearrangement) with your camcorder Finalizing the disc lets you play it back on a VR mode compatible DVD device. Quick Reference 145

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145
Quick Reference
Glossary
x
5.1ch surround sound
A system that plays back sound on 6 speakers, 3 at
the front (left, right and center) and 2 at the rear
(right and left) with an additional low-pass
subwoofer counted as a 0.1 channel for
frequencies of 120 Hz or lower.
x
AVCHD format
A high definition digital video camera format
used to record an HD (high definition) signal
using the MPEG-4 AVC/H.264 format.
x
Dolby Digital
An audio encoding (compression) system
developed by Dolby Laboratories Inc.
x
Dolby Digital 5.1 Creator
Sound compression technology developed by
Dolby Laboratories Inc. which compresses audio
efficiently while preserving high sound quality.
Sounds are compressed effectively with high
quality sound, and it enables producing 5.1ch
surround sound.
x
DVD format
A format used to record an SD (standard
definition) signal on 8 cm DVD discs.
x
JPEG
JPEG stands for Joint Photographic Experts
Group, a still image data compression (data
capacity reduction) standard. Your camcorder
records still images in JPEG format.
x
MPEG
MPEG stands for Moving Picture Experts Group,
the group of standards for the coding (image
compression) of video (movie) and audio. There
are MPEG1 and MPEG2 formats. Your
camcorder records movies with SD (standard
definition) image quality in MPEG2 format.
x
MPEG-4 AVC/H.264
The latest image coding format standardized
jointly by two international standardization
organizations, the ISO-IEC and the ITU-T, in
2003. Compared with the conventional MPEG2
format, MPEG-4 AVC/H.264 has more than twice
the efficiency. Your camcorder employs MPEG-4
AVC/H.264 to encode high definition movies.
x
Thumbnail
Reduced-size images which enable you to view
many images at the same time. The VISUAL
INDEX screen, the Film Roll Index screen and the
Face Index screen use a thumbnail display system.
x
VIDEO mode
One of the recording formats you can select when
using a DVD-RW with SD (standard definition)
image quality. VIDEO mode provides excellent
compatibility with other DVD devices.
x
VBR
VBR stands for Variable Bit Rate, the recording
format for automatically controlling the bit rate
(the volume of recording data in a given time
segment) according to the scene being recorded.
For fast-moving video, a lot of media space is
used to produce a clear image, so the recording
time to the media shortens.
x
VR mode
One of the recording formats you can select when
using a DVD-RW with SD (standard definition)
image quality. VR mode enables editing (deleting
or sequence rearrangement) with your camcorder
Finalizing the disc lets you play it back on a VR
mode compatible DVD device.