Alpine CDE-102 Quick Reference Manual page 37

Supported playback sampling rates and bit rates
MP3
Sampling rates: 48 kHz. 44.1 kHz. 32 kHz, 24 kHz, 22.05 kHz.
16 kHz. 12 kHz, 11.025 kHz, 8 kHz
Bit rates: 8 - 320 kbps
WMA
Sampling rates: 48 kHz, 44.1 kHz. 32 kHz
Bit rates: 48 - 192 kbps
AAC
Sampling rates: 48 kHz. 44.1 kHz. 32 kHz. 24 kHz. 22.05 kHz.
16 kHz. 12 kHz. 11.025 kHz. 8 kHz
Bit rates: 16 - 320 kbps
This device may not play back correctly depending on sampling
rates.
Order of files
Files are played back in the order that the writing software writes
them to the disc. Therefore. the playback order may not be what
is expected. Verify the writing order in the software's
documentation. The playback order of the folders and files is as
follows.
CD
ID3 tagsIWMA tags
This device supports ID3 tag v1 and v2. and WMA tag.
If tag data is in an MP3/WMNAAC file. this device can display
the title (track title), artist name. and album name 1D3 tag/WMA
tag data.
This device can only display single-byte alphanumeric
characters (up to 30 for ID3 tags and up to 15 for WMA tags)
and the underscore. For non-supported characters, "NO
SUPPORT" is displayed.
If information contains characters other than 1D3 tag information.
the audio file may not be played back.
The tag information may not be correctly displayed, depending
on the contents.
Folder
@
®
®
D
MP3IWMAJAAC File
Producing MP3IWMAlAAC discs
MP3/WMNAAC files are prepared. then written to a CD-R or
CD-RW using CD-R writing software. A disc can hold up to 510
files/folders (including Root Folders). and the maximum number
of folders is 255.
Playback may not be performed if a disc exceeds the limitations
described above.
Media supported
The media that this device can play back are CD-ROMs. CD-Rs,
and CD-RWs.
Corresponding File Systems
This device supports discs formatted with IS09660 Level 1 or
Level 2.
Under the IS09660 standard, there are some restrictions to
remember.
The maximum nested raider depth is 8 (including the root
directory). The numbe of characters for a folder/file name is
limited.
Valid characters for folder/file names are letters A-Z (all caps).
numbers 0-9, and '_' (underscore).
This device also can play back discs in Joliet, Romeo. etc., and
other standards that conform to IS09660. However, sometimes
the file names. folder names, etc.. are not displayed correctly.
Formats supported
This device supports CD-ROM XA, Mixed Mode CD. Enhanced
CD (CD-Extra) and Multi-Session.
This device cannot correctly play back discs recorded with
Track At Once or packet writing.
*
The folder No.!folder Name will not be displayed
if
no file
is
contained in the folder.
Bit rate
This
is
the "sound" compression rate specified for encoding. The
higher the bit rate. the higher the sound quality. but also the larger
thejiles. .
Sampling rate
This value shows how many times per second the data is sampled
(recorded). For example. music CDs use a sampling rate
~l44.1
kHz.
so the sound is sampled (recorded) 44,100 times per second. The
higher the sampling rate. the higher the sound quality, but also the
larger the volume of data.
Encoding
Converting music CDs. WAVE (A1FFJiiles. and other soundjiles into
the specified audio compression format.
Tag
Song information such as track titles. artist names. album names.
etc.. written into MP3IWMNAACjiles.
Root folder
The rootfolder (or root directory) isfound at the top ofthejile
system. The root folder contains allfolders andjiles. It is created
automatically for all burned discs.
ii-EN