Clarion CMV1 User Guide

CMV1

This system can playback MP3/WMA/AAC files recorded on a disc.

MP3, WMA, and AAC are the audio file formats 
which have penetrated into PC users and 
become a standard format.
MP3 is an audio compression method and 
classified into audio layer 3 of MPEG standards.
WMA (Windows Media Audio) is an audio 
compression method developed by Microsoft 
Corporation.
AAC (Advanced Audio Coding) is a newer audio 
compression method developed for used with 
video compression standards MPEG-2 and 
MPEG-4, and has been adopted as the standard 
audio format of the iPod and iTunes by Apple Inc.
These features compress the original audio data 
to about 10 percent of its initial size with a high 
sound quality. This means that about 10 audio 
CDs can be recorded on a CD-R/RW disc to 
allow a long listening time without having to 
change CDs.

Tag information (track title, artist name, and 
album title) can be displayed for an MP3/WMA/
AAC file containing the Tag information.
This system supports the ID3 TAG version 1.x/
2.x and WMA-TAG.

Note:
• Tag information entered with 2-byte characters 

• The ID3 version 2.x tag format is not completely 

• Album titles of WMA-TAG may not be displayed 

●General precautions
• Files other than MP3/WMA/AAC format cannot 

be played. In addition, some files may not be 
played because of the encoding settings. 
When a file cannot be played, the next file is 
played instead.

• Some noise may occur depending on the type 

of encoder software used to encode the data.

• You can apply the VBR (Variable Bit Rate) 

format when encoding. In this case, the 
displayed play time may be slightly different 
from the actual play time.

• Files that the DRM (Digital Rights 

Management) function is set cannot be played.

●For MP3 files
• Set the Sampling Frequency to:

• MPEG1 Layer3: 32, 44.1, or 48 kHz
• MPEG2 Layer3: 16, 22.05, or 24 kHz
• MPEG2.5 Layer3: 8, 11.025, or 12 kHz

• Set the Bit Rate to:

• MPEG1 Layer3: 32 to 320 kbps (VBR)
• MPEG2 Layer3: 8 to 160 kbps (VBR)
• MPEG2.5 Layer3: 8 to 160 kbps (VBR)

• Add a file extension “.MP3” or “.mp3” using 

single byte characters.

●For WMA files
• Set the Sampling Frequency to within ranges 

from 22.05 to 44.1 kHz.

• Set the Bit Rate to 48, 64, 80, 96, 128, 160, or 

192 kbps.

• Add a file extension “.WMA” or “.wma” using 

single byte characters.

●For AAC files
• This system supports only the MPEG4 Audio 

files encoded by the iTunes.

• Set the Sampling Frequency to 44.1 or 48 kHz.
• Set the Bit Rate to within ranges from 16 to 320 

kbps (VBR).

• Add a file extension “.M4A” or “.m4a” using 

single byte characters.

280PE3161BA_EN.book  Page 24  Thursday, March 12, 2009  1:12 PM