Alfa Romeo 147 Benutzeranleitung

This section only describes MP3 CD play-

er operation variants: as concerns sound sys-
tem operation, refer to paragraph “Functions
and adjustments”.

NOTE MPEG Layer-3 audio decoding tech-

nology licensed from Fraunhofer IIS and
Thomson multimedia.

In addition to standard audio CDs, the

sound system can also play audio files in
MP3 format. Sound system will operate as
described in “Compact Disc player” para-
graph when inserting a conventional audio
CD.

For optimal playing use only top quality

CDs mastered at a speed as low as possible.

MP3 CD files are structured by directories,

with sequential lists of all directories con-
taining MP3 tracks (directories and sub-di-
rectories are all brought to the same lev-
el), directories not containing MP3 tracks
cannot be selected.

Technical data and operating conditions for

MP3 files are as follows:

– adopted CD-ROM shall be mastered ac-

cording to ISO9660 Standard;

– music files shall be renamed as “.mp3”

otherwise they cannot be played;

– sampling frequencies are: 44.1 kHz,

stereo (96 to 320 kbit/s) - 22.05 kHz,
mono or stereo (32 to 80 kbit/s);

– it is possible to play variable bit-rate

tracks (files).

IMPORTANT Characters: blank, ‘ (apos-

trophe), ( and ) (open and closed brackets)
are not admitted in MP3 track names. When
sampling MP3 CD you must not use these
characters to name files otherwise the sound
system will not be able to play it.

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