6. Glossary
Audio Player
An audio player is a software application on a portable
device (e.g. mobile phone) for playing audio files stored
on the device.
Authorisation
For automatic establishment of a Bluetooth
®
connection
to be possible, the device requesting the connection
must be authorised on the opposite side. This authorisa-
tion is performed automatically on some phones, while
on others it must be performed explicitly by the user in
the Bluetooth
®
device list.
Auto-Connect
If two devices have been registered or ‘paired’ with each
other, i.e. authorised to exchange data, either device can
be configured to automatically transmit a connection
request that is automatically answered by the other
device. It is therefore possible for a Bluetooth
®
mobile
phone to be connected automatically every time the car
is started. In order for the mobile phone to accept a
request from the in-car system, the system must be
authorised in the device list on the mobile phone.
AUX BT
AUX BT is an external audio source in the PCM (similar to
an iPod or USB) by means of which audio data stored on
a mobile device can be transferred using Bluetooth
®
and
played on the PCM’s sound system. Bluetooth
®
profiles
required are A2DP and AVRCP.
Bluetooth
®
Bluetooth
®
is an industrial standard for the wireless
networking of electronic devices over a short range (up
to 10 metres). It allows mobile electronic devices such
as mobile phones and PDAs as well as computers and
peripherals, e.g. keyboards, to communicate wirelessly
with each other, with Bluetooth
®
as the interface.
Bluetooth
®
Advanced Audio Distribution Profile (A2DP)
Bluetooth
®
Advanced Audio Distribution Profile (A2DP)
enables digital audio data (e.g. MP3s) to be transferred
wirelessly from a data source (portable MP3 player or
mobile phone) to a receiver (headphones or vehicle
sound system). It is used by the PCM for the AUX BT
source.
Bluetooth
®
Audio/Video Remote Control Profile
(AVRCP)
The Bluetooth
®
Audio/Video Remote Control Profile
(AVRCP) enables remote control of an audio player in a
mobile device (e.g. portable MP3 player or mobile
phone). The functions it supports are primarily depend-
ent on the concrete implementation of the mobile phone
or MP3 player in question. Minimum functions are ‘Start
Player’, ‘Pause’, ‘Next Track’ and ‘Previous Track’. Some
newer devices already partly support transmission of
metadata (track name, artist and album name for
the track playing), but may also support the start of the
audio player when the appropriate AUX Bluetooth
®
source is selected on the PCM, or advanced player
functions such as ‘Shuffle’ or ‘Repeat’.
30
6. Glossary
