Notes On Mp3/Wma - Panasonic CQ-5250U Operating Instructions Manual

Notes on MP3/WMA

Both of MP3 (MPEG Audio Layer-3) and WMA (Windows Media™ Audio) is a format for compressed audio file. These formats allow
users to save all the files contained in approximately 10 pieces of existing CDs on one piece of CD-R/RW.
Note: Each of encoding software is not included with this unit.
*MPEG Layer-3 audio coding technology licensed from Fraunhofer IIS and Thomson.
Cautions as to compressed audio files
Common
¡
High bit rate and high sampling frequency are recommended
for high quality sounds.
¡ Selecting VBR (Variable Bit Rate) is not recommended
because playing time is not displayed properly and sound
may be skipped.
¡
The playback sound quality differs depending on the encoding
circumstances. For details, refer to the user manual of your
own encoding software and writing software.
¡
Be sure to put an extension compatible with the format.
Compression formats
Compression method
MPEG 1 audio layer 3 (MP3)
MPEG 2 audio layer 3 (MP3)
MPEG 2.5 audio layer 3 (MP3)
Windows Media Audio Ver. 2, 7, 8, 9*
* WMA 9 Professional/LossLess/Voice are not supported.
Caution
Never put an extension indicating compressed audio (such as ".mp3" and ".wma") to files other than com-
pressed audio files. This may not only produce noise from the speaker damage, but also damage your
hearing.
Cautions as to the display of this unit
Display Information
¡
CD-TEXT
Disc title
Track title
¡
MP3/WMA
Folder name,
File name
Displayable characters
¡
Displayable length of file name/folder name: within 30 charac-
ters. (Unicoded file and folder names are reduced by half in
the number of displayable characters.)
¡ Name files and folders in accordance with the standard of
each file system. Refer to the instructions of writing software
for details.
¡
ASCII character set and special characters in each language
can be displayed.
30
CQ-5250U
Bit rate
32 k – 320 kbps
8 k – 160 kbps
8 k – 160 kbps
64 k – 160 kbps
¡
MP3 (ID3 tag)
Album name,
Title name/artist name
¡
WMA (WMA tag)
Album name,
Title name/artist name
MP3
¡
It is recommended to set the bit rate to "128 kbps or more"
and "fixed".
WMA
¡
It is recommended to set the bit rate to "64 kbps or more"
and "fixed".
¡
Do not set the copy protect attribute on the WMA file to
enable this unit to play back.
VBR Sampling frequency
Yes 32, 44.1, 48 kHz
Yes 16, 22.05, 24 kHz
Yes 8, 11.025, 12 kHz
Yes 32, 44.1, 48 kHz
ASCII character set
A to Z, a to z, digits 0 to 9, and the following symbols:
(space) ! " # $ % & ' ( ) * + , - . / : ; < = > ? @ [ \ ] ˆ _ ` { | }
~
Notes:
¡
Characters may be garbled depending on encoding software
to be used
¡
Undisplayable characters and symbols will be converted into
an asterisk ( ).
*
Windows Media, and the Windows
logo are trademarks, or registered
trademarks of Microsoft Corporation
in the United States and/or other
countries/regions.