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Chapter 9
Glossary
Aspect ratio »
The ratio of a TV screen’s width to its height.
Standard TVs have an aspect ratio of 4:3,
while high definition (HD) and widescreen
TVs have an aspect ratio of 16:9.
AVCHD
»
(Advanced Video Codec High Definition)
The AVCHD is a high definition (HD) digital
video camera recorder format recording
high-definition onto certain media by using
highly efficient codec technologies.
Component video output
»
This video output terminal provides clearer
pictures when connected to a TV equipped
with component inputs. Component video
signals consist of three signals, Y, PB and
PR.
Composite video output
»
Signals mixing the luminance signal (Y)
and the color signal (C) so they can be
transferred on a single cord are output from
this terminal.
Dolby Digital
»
Dolby Digital is an audio format to record the
sound in up to 5.1 channels with a fraction
of the amount of data as compared to linear
PCM audio signals.
Dolby Digital Plus
»
Dolby Digital Plus is an audio format for
high-definition media. Built on Dolby Digital,
it combines the efficiency and flexibility to
provide high quality multi-channel audio.
With BD-ROMs, up to 7.1 channels of digital
sound can be recorded.
Dolby TrueHD
»
Dolby TrueHD is an audio format using
lossless coding. With BD-ROMs, up to 8
channels can be recorded at 96 kHz/24 bits,
or up to 6 channels at 192 kHz/24 bits.
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