Pioneer AVIC-F550BT - Manual (Page 131)

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Glossary
AAC
AAC is short for Advanced Audio Coding and
refers to an audio compression technology
standard used with MPEG-2 and MPEG-4.
Aspect ratio
This is the width-to-height ratio of a TV screen.
A regular display has an aspect ratio of 4:3.
Wide screen displays have an aspect ratio of
16:9, providing a bigger picture for exceptional
presence and atmosphere.
Bit rate
This expresses data volume per second, or bps
units (bits per second). The higher the rate,
the more information is available to reproduce
the sound. Using the same encoding method
(such as MP3), the higher the rate, the better
the sound.
CD-DA
This stands for a general music CD (commer-
cial-release audio CD). In this manual, this
word is sometime used for a distinction be-
tween data CDs (which include compressed
audio files) and general music CDs.
Current location
The present location of your vehicle; your cur-
rent location is shown on the map by a red tri-
angle mark.
Destination
A location you choose as the end point of your
journey.
GPS
Global Positioning System. A network of satel-
lites that provides navigation signals for a vari-
ety of purposes.
Guidance point
These are important landmarks along your
route, generally intersections. The next gui-
dance point along your route is indicated on
the map by the yellow flag icon.
ID3 tag
This is a method of embedding track-related
information in an MP3 file. This embedded in-
formation can include the track title, the ar-
tist
’s name, the album title, the music genre,
the year of production, comments and other
data. The contents can be freely edited using
software with ID3 tag editing functions.
Although the tags are restricted by the num-
ber of characters, the information can be
viewed when the track is played back.
ISO 9660 format
This is the international standard for the for-
mat logic of DVD/CD-ROM folders and files.
For the ISO9660 format, there are regulations
for the following two levels:
! Level 1:
The file name is in 8.3 format (the name
consists of up to eight characters, half-byte
English capital letters, half-byte numerals
and the
“_” sign, with a file-extension of
three characters).
! Level 2:
The file name can have up to 31 characters
(including the separation mark
“.” and a file
extension). Each folder contains less than
eight hierarchies.
JPEG
This stands for Joint Photographic Experts
Group, and is an international still image com-
pression standard.
MP3
MP3 is short for MPEG Audio Layer 3. It is an
audio compression standard established by a
working group (MPEG) of the ISO (Interna-
tional Organization for Standardization). MP3
is able to compress audio data to about 1/10th
the size of a conventional disc.
MPEG
This stands for Moving Pictures Experts
Group, and is an international video image
compression standard.
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Appendix
Appendix
Appendix