Table of Contents
Advertisement
5.1.3 Supported audio file formats
The USB player supports the playback of MP3 and Wave files with the following requirements:
Supported file systems
The file system of the USB Mass Storage Device must be either FAT12, FAT16 or FAT32.
Format
Bit rate
MP3
all
8 bit
16 bit
WAV
24 bit
32 bit
5.1.4 Playing audio files
After plugging in an USB stick the USB status LED should light up green indicating the presence
of playable audio material. You may start the playback by pressing "play" (16). This will trigger the
search of the first track.
In general,
folders and files are played in alphabetical order
•
folders without valid audio material are ignored
•
Invalid playlist items are skipped
•
To sort out the first track the USB player will firstly examine the root directory for audio and sub-
sequently jump into the alphabetically first folder and find the first track there as well. The search
progress will go forth in this manner, including all sub folders. The later section will describe this in
detail.
5.1.5 Playback order
A reasonable playback order is kept by the alphabetical sorting of the file names and folder
names. As with the alphanumerical sorting that, by its name, relates to characters and numbers
the sorting priority is in the order:
punctuation characters – numbers – letters – remaining symbols.
Commonly, the order of audio albums is defined by title numeration, e.g. in the form:
01 – Title.mp3
02 – Title.mp3
03 – Title.mp3
Format code
-
PCM / µ-law, A-law
linear PCM
linear PCM
IEEE Float
Sample rate
up to 96 kHz
23
Advertisement
Table of Contents
