Panasonic CQ-C8405U Operating Instructions Manual page 26

MP3/WMA/AAC Player (continued)
Each of MP3 (MPEG Audio Layer-3), WMA (Windows Media™ Audio), and AAC (Advanced Audio Coding) 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.
Setting at file making
Common
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High bit rate and high sampling frequency are recom-
mended for high quality sounds.
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Selecting VBR (Variable Bit Rate) is not recommended
because playing time is not displayed properly and
sound may be skipped.
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The playback sound quality differs depending on the encod-
ing circumstances. For details, refer to the user manual of
your own encoding software and writing software.
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Be sure to put an extension compatible with the format.
MP3
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It is recommended to set the bit rate to "128 kbps or
more" and "fixed".
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*
MPEG 4 AAC LC
* WMA 9 Professional/LossLess/Voice are not supported.
Caution
Never put an extension indicating compressed audio (such as ".mp3", ".wma", and ".m4a") to
files other than compressed audio files. This may not only produce noise from the speaker
damage, but also damage your hearing.
Display Information
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Common
Folder name,
File name
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MP3
Album name,
Title name/artist name
(ID3 tag)
Displayable characters
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Displayable length of file name/folder name: within 64
characters. (Unicoded file and folder names are
reduced by half in the number of displayable charac-
ters.)
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CQ-C8405U/C8305U
WMA
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AAC
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Bit rate
32 k – 320 kbps
8 k – 160 kbps
8 k – 160 kbps
32 k – 192 kbps
24 k – 320 kbps
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WMA
Album name, ¡
Title name/artist name
(WMA tag)
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ASCII character set
AAC
A to Z, a to z, digits 0 to 9, and the following sym-
Album name,
bols:
Title name/artist name
(space) ! " # $ % & ' ( ) * + , - . / : ; < = > ? @ [ \ ] ˆ
(AAC tag)
_ ` { | } ~
Notes:
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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.
It is recommended to set the bit rate to "128 kbps or
more" and "Stereo".
Files with the extension of ".m4a" encoded using
iTunes version 6 are playable on this unit. Some of the
files using other encoders are not playable.
Files encoded using Apple Lossless Encoder are not
playable.
Files with copyright protection are not playable.
VBR Sampling frequency
Yes 32, 44.1, 48 kHz
Yes 16, 22.05, 24 kHz
Yes 12, 11.205, 8 kHz
Yes 32, 44.1, 48 kHz
8, 11.205, 12, 16, 22.05,
Yes
24, 32, 44.1, 48 kHz
Name files and folders in accordance with the stan-
dard of each file system. Refer to the instructions of
writing software for details.
ASCII character set and special characters in each lan-
guage can be displayed.
Characters may be garbled depending on encoding
software to be used
Undisplayable characters and symbols will be convert-
ed into an asterisk ( ).
*