MP3/WMA/AAC Player
Notes on MP3/WMA/AAC
What is MP3/WMA/AAC?
MP3* (MPEG Audio
The former is developed by MPEG (Motion Picture Experts Group), and the latter is developed by Microsoft Corporation. Using these compression formats, you can record the contents of about 10 music CDs on a single CD media (This figures refer to data recorded on a 650 MB
*MPEG
AAC is an abbreviation for “Advanced Audio Coding”.
It has been defined as a standard for audio compression technology using MPEG 2 and MPEG 4.
Note: MP3/WMA/AAC encoding and writing software is not supplied with this unit.
Points to remember when making
MP3/WMA/AAC files
Common
•High bit rate and high sampling frequency are recommended for high quality sounds.
•Selecting Variable Bit Rate (VBR) is not recommended because playing time is not displayed properly and sound may be skipped.
•Selecting Variable Bit Rate (VBR) is not recommended because
•The playback sound quality differs depending on the encoding circumstances. For details, refer to the instructions of your own encoding software and writing software.
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.
AAC
•It is recommended to set the bit rate to “128 kbps or more” and “fixed”.
•The formats and extensions for AAC data vary according to the encoder software used.
•AAC files which can be played on this unit have the “.m4a” extension and were encoded with Apple iTunes® version 6.
•The file extension for files encoded with the iTunes Apple Lossless Encoder is “.m4a”, but such files cannot be played on this player.
•Files under copyright protection cannot be played.
Display Information
Displayed items
• | • MP3 (ID3 tag) |
Disc title | Album name |
Track title | Title name/artist name |
• MP3/WMA/AAC | • WMA (WMA tag) |
Folder name | Album name |
File name | Title name/artist name |
•AAC (Song information) Album name
Title name/artist name
Displayable characters
•Displayable length of file name/folder name: within
32 characters. (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.
•Some Cyrillic characters in the Unicode can be
displayed.
ASCII character set
A to Z, a to z, digits 0 to 9, and the following symbols: (space) ! ” # $ % & ’ ( ) * + ,
Special Characters
ÀÁ Â Ã Å à á â ã å Ä ä Ò Ó Ô Õ Ö ò ó ô õ ö
Ù Ú Û Ü ù ú û ü
Notes:
• With some software in which MP3/WMA/AAC format files have been encoded, the character information may not be displayed properly.
• Undisplayable characters and symbols will be converted into an asterisk ( ).
• It is recommended that the length of the file name is less than 8 (excluding the file extension).
iTunes is a trademark of Apple Computer, Inc., registered in the U.S. and other countries/regions.
Windows Media, and the Windows logo are trademarks, or registered trademarks of Microsoft Corporation in the United States and/or other countries/regions.
Caution
Never assign the “.mp3”, “.wma” or “.m4a” file name extension to a file that is not
in the MP3/WMA/AAC format. This may not only produce noise from the speaker damage, but also damage your hearing.