Notes on MP3/WMA
Both of MP3 (MPEG Audio
Note: Each of encoding software is not included with this unit.
*MPEG
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.
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.
Compression formats
Compression method | Bit rate | VBR | Sampling frequency |
|
|
|
|
MPEG 1 audio layer 3 (MP3) | 32 k – 320 kbps | Yes | 32, 44.1, 48 kHz |
|
|
|
|
MPEG 2 audio layer 3 (MP3) | 8 k – 160 kbps | Yes | 16, 22.05, 24 kHz |
|
|
|
|
MPEG 2.5 audio layer 3 (MP3) | 8 k – 160 kbps | Yes | 8, 11.025, 12 kHz |
|
|
|
|
Windows Media Audio Ver. 2, 7, 8, 9* | 64 k – 160 kbps | Yes | 32, 44.1, 48 kHz |
|
|
|
|
* 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
¡ | ¡ MP3 (ID3 tag) |
Disc title | Album name, |
Track title | Title name/artist name |
¡ MP3/WMA | ¡ WMA (WMA tag) |
Folder name, | Album name, |
File name | Title name/artist 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.
ASCII character set
A to Z, a to z, digits 0 to 9, and the following symbols: (space) ! ” # $ % & ’ ( ) * + ,
~
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 trade- marks or registered trade- marks of Microsoft Corporation in the United States and/or other coun- tries/regions.
32
