Opel CD 70 NAVI Bedienungsanleitung Seite 148

MP3
A method for compressing audio data
developed by the German Fraunhofer
Institute. The compression allows a
reduction of the data quantities by about
10% of its original size without any audible
loss in quality (with a bit rate of 128 kbit/s).
If lower bit rates are used when encrypting
the CD audio data on MP3 smaller files are
possible, but this will result in quality losses.
RDS (Radio Data System)
Radio Data System offers the possibility
of transmitting inaudible digital data
alongside voice and music programmes
via the FM signal.
The following section contains the most
important information that is transmitted
with the RDS signal:
PS, Programme Service Name
Display of programme name. Some
stations display additional information, like
the current music title, current news, etc.
AF, Alternative Frequency
An RDS programme is transmitted on
several frequencies simultaneously. During
the journey, the Infotainment System
automatically searches for the best
receivable frequency.
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PTY, Programme Type
Many RDS stations transmit a PTY code
that indicates the type of programme
being broadcast (e.g. News). The PTY code
enables selection of the station according
to programme type.
REG, Regional programmes
Some RDS stations transmit different
regional programmes over different
frequencies at certain times. You can
continue to listen to the set regional
programme even when travelling through
the reception area of the next regional
programme.
TP, Traffic Programme
Traffic Programme. Traffic stations are
VHF RDS stations which transmit traffic
information.
A special ID is transmitted during a traffic
announcement (the TA bit). When this ID is
received, the Infotainment System switches
to traffic announcement, even during CD/
MP3 playback or mute.
TMC, Traffic Message Channel
Some RDS stations transmit digital
information about the current traffic
situation in addition to traffic
announcements.
The traffic information received can
be recalled in the Info menu. Road
obstructions on your route are evaluated
for dynamic guidance.
RDS time signal
The vehicle clock can be synchronised to
the time transmitted via RDS, see vehicle
operating instructions.
EON, Enhanced Other Networks
With EON you will hear traffic reports,
even if the set station does not transmit its
own traffic information. When a traffic
announcement is made, the unit switches
to a traffic information station linked to
EON.
SDVC
Speed-dependent volume control. To
compensate for outside and road noises
the volume of the Infotainment System can
be adjusted in accordance with the speed
of the vehicle.
TA Volume
Traffic announcement volume