Alpine CDE-9845 - Manual (Page 11)

10
-EN
About MP3/WMA (CDE-9845/CDE-9843 only)
CAUTION
Except for private use, duplicating audio data (including MP3/
WMA data) or distributing, transferring, or copying it, whether for
free or for a fee, without permission of the copyright holder is
strictly prohibited by the Copyright Act and by international treaty.
What is MP3?
MP3, whose official name is “MPEG-1 Audio Layer 3,” is a
compression standard prescribed by the ISO, the International
Standardization Organization and MPEG which is a joint
activity institution of the IEC.
MP3 files contain compressed audio data. MP3 encoding is
capable of compressing audio data at extremely high ratios,
reducing the size of music files to as much as one-tenth their
original size. This is achieved while still maintaining near CD
quality. The MP3 format realizes such high compression ratios
by eliminating the sounds that are either inaudible to the
human ear or masked by other sounds.
What is WMA?
WMA, or “Windows Media™ Audio,” is compressed audio
data.
WMA allows you to create music files and store them at higher
ratios of compression than MP3 audio data (approx. half
original size). This is achieved while still maintaining CD
quality sound.
Method for creating MP3/WMA files
Audio data is compressed by using MP3/WMA specified
software. For details on creating MP3/WMA files, refer to the
user's manual for that software.
MP3/WMA files that can be played back by this device have
the file extension “mp3” / “wma”. Files with no extension
cannot be played back. (WMA ver. 7.1, 8 and 9 are
supported)
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
Variable bit rate: 8 - 320 kbps
WMA
Sampling rates: 48 kHz, 44.1 kHz, 32 kHz
Bit rates:
48 - 192 kbps
Variable bit rate: 48 - 320 kbps
Note that for sampling rates, this device’s frame display (Page
14) may not display correctly.
This device may not play back correctly depending on
sampling rates.
ID3 tags/WMA tags
This device supports ID3 tag v1 and v2, and WMA tag.
If tag data is in an MP3/WMA file, this device can display the title
(track title), artist name, and album name ID3 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” (CDE-9845 only) or “NO SUPRT” (CDE-9843/CDE-
9841 only) is displayed.
The tag information may not be correctly displayed,
depending on the contents.
Producing MP3/WMA discs
MP3/WMA 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). However, the maximum
number of folders is 255.
Media supported
The media that this device can play back are CD-ROMs, CD-
Rs, and CD-RWs.
File/Folder Name Search (concerning MP3/
WMA) (CDE-9845/CDE-9843 only)
You can display and search for the folder and file name while
listening to the file currently being played back.
1
Press to select File Name Search mode or
Folder Name Search mode in MP3/WMA mode.
File Name Search mode
2
Press 8 or 9 to select another Folder.
3
Select the desired file by turning the Rotary
encoder within 10 seconds.
4
Press the Rotary encoder to play back the
selected file.
• File Name Search mode is cancelled by pressing and holding for
at least 2 seconds.
• While in File Name Search mode, press to switch to Folder
Name Search mode.
• File Name search cannot be made during M.I.X. play.
Folder Name Search mode
2
Turn the Rotary encoder within 10 seconds to
select the desired folder.
3
Press the Rotary encoder to play back the first
file in the selected folder.
• Search mode is cancelled by pressing and holding for at least 2
seconds in Folder Name Search mode.
• While in Folder Name Search mode, press to switch to File
Name Search mode.
• “NO FILE” is displayed for 2 seconds if the folder that is selected
by the Folder Name Search mode contains no files.
• “ROOT” is displayed for the root folder which does not have
folder name.
• Folder Name search cannot be made during M.I.X. play.
Quick Search (CDE-9845/CDE-9843 only)
You can search for tracks (files).
1
Press and hold for at least 2 seconds in the CD/
MP3/WMA mode to activate Quick Search mode.
2
Turn the Rotary encoder within 10 seconds to
select a desired track (file).
The selected track is played back immediately.
• Search mode is cancelled by pressing and holding for at least 2
seconds in Quick Search mode.