KENWOOD
Global Site
  TOP >  Audio File >  Audio File Specification
KDC-MP4036AX, KDC-MP3036AX, KDC-MP336AX, KDC-MP3036, KDC-MP336
KDC-MP2035, KDC-MP235, KDC-MP205, KDC-MP235CR
KDC-W4037, KDC-W3537, KDC-W3037, KDC-W311, KDC-W237
E323S
About MP3 and WMA
The playable MP3/WMA file (hereafter called Audio file) and the media format has the following limitation. The Audio file, which is not conforming to the specification, may not play normally, or the file and folder names may not display correctly.
 
Playable Audio file
MP3 Format MPEG 1/2 Audio Layer 3 file
Transfer bit rate 8-320 kbps / Variable Bit Rate
Sampling frequency 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48 kHz
Joint STEREO
ID3 Tag (Ver.1) Ver1.0/ 1.1 (Title/ Artist/ Album)
ID3 Tag (Ver.2)
WMA Format The file in accordance with Windows Media Audio
(Except for the file for Windows Media Player 9 or after which applies the new functions)
Transfer bit rate 32-192 kbps / Variable Bit Rate
Sampling frequency 32, 44.1, 48 kHz
DRM file
Professional
Lossless
Voice
WMA Tag (Content Description) (Title/ Artist)
WMA Tag (Extended Content Description)
Attach the correct extension for the Audio file (MP3: ".MP3", WMA: ".WMA")
Do not attach the extensions to files other than the Audio file. If the extension is attached, the file, which is not the Audio file, will play and outputs a loud noise, causing damage to the speaker.
The files with copy protection cannot be played.
The unit may not be compatible with upgrade of compression format standard and additional specifications.
There are times when play time is not displayed correctly according to the Audio file recording conditions.
Supreme is not applied for songs that have been encoded at a variable bit rate.
Page Top
 
Playable storage media file system
CD-R/RW File system (Windows) ISO 9660 Level 1/2
ISO 9660 Level 3
Romeo
Joliet
Long File Name
File system (Macintosh)
File system (UNIX)
Multi-Session *1
CD-RW discs which are quick formatted by the writing software cannot be used.
When recording to the maximum CD-R/RW media capacity at once, the writing software is set to "Disc at once".
Joliet is recommended for file system of CD-R/RW. With other file systems, the display may not be shown correctly depending on the operating conditions.
*1: For CD-DA/ audio file mixed disc, the unit plays only the playback system recorded at the first setout.
* When the CD-R/RW recorded by CD-ROM MODE 2 (XA) format cannot be played, please record again by using CD-ROM MODE 1 writing format.
Page Top
 
Limitation of structure for the file and the folder
CD-R/RW Maximum number of directory levels 8
Maximum number of folders 50
Maximum number of files per folder 255
Maximum number of files and folders 512
It may take time to start playing depending on the recording conditions such as file hierarchy and folder structure.
Page Top
 
The maximum number of characters for display
File/Folder name 64 characters (Joliet: 32 characters)
MP3 ID3 Tag 30 characters
WMA Contents property 30 characters
Number of characters is based on byte unit.
File/Folder name is the number of the characters including the extensions.
This unit can display the following versions of MP3 ID3 tag: version 1.0/ 1.1
Page Top
 
Playing order of the Audio file
The Audio file plays in the order which is written by CD writing software. You may be able to set the playing order by writing the play sequence numbers such as "01" to "99" at the beginning of the file name.
Example
Folder : Folder
Audio file : Audio file
Playing order
Playing order after Audio file(1) play.
Audio file(1), Audio file(2), Audio file(3), Audio file(4), Audio file(5)...
File search
Forward file search during Audio file(2)play.
Push the Control knob towards [skip up] Audio file(3)
Folder search
Forward folder search during Audio file(2)play.
Push the Control knob towards [FM] Folder(4), Folder(5)...
Folder select
When the selection is set to directory Folder(4), and you want to skip to the folder Folder(2) at the same level.
Push the Control knob towards [skip down] Folder(2).
When the selection is set to directory Folder(3), moves the level up by folder select.
Push the Control knob towards [AM] Folder(2)
Page Top
 
  Copyright 2007 Kenwood Corporation