Audio Files(MP3/WMA/AAC/WAV)
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A
V
Audio Functions
What Is AAC?
AAC is an abbreviation of Advanced Audio
Coding, and this is an audio compression
standard used in “MPEG-2” and “MPEG-4”.
This features 1.4x the compression of MP3,
with comparable audio quality.
CAUTION
• AAC supports digital rights management
(DRM). This product cannot play back
AAC
fi
les protected using this system.
• AAC
fi
les different to the standards at
right may not play back correctly, or
fi
le/folder names may not be displayed
correctly.
Standards for AAC Files That Can Be Played Back
Speci
fi
cations for AAC
fi
les that can be played are as below.
* For vehicles with the Bluetooth
®
2.0 interface, refer to the vehicle's user manual (Bluetooth
®
2.0 interface).
Item
Details
Speci
fi
cation
Advanced Audio Coding
MPEG4/AAC-LC
MPEG2/AAC-LC
Sampling
frequency [kHz]
MPEG4
8/11.025/12/16/22.05/24/32/44.1/48/64/88.2/96
MPEG2
8/11.025/12/16/22.05/24/32/44.1/48/64/88.2/96
Bit rate
[kbps]
MPEG4
16~576
MPEG2
16~576
VBR (variable bit rate)
Support
Channel mode
Stereo/Monaural
File extension
m4a,aac (Only “.m4a” is supported on discs)
Supported tag information
AAC tags or ID3 tags
Title, Artist name, Album name
Maximum number of characters
that can be indicated on the source
plate
*1
Files names: 18 single-byte characters (9 double-byte characters)
Folder names: 41 single-byte characters (20 double-byte characters)
Maximum number of characters
that can be indicated in a list
*1
Playlist names : 46 single-byte characters (23 double-byte characters)
Title names
: 34 single-byte characters (17 double-byte characters)
When folder list
displayed
48 single-byte characters (24 double-byte characters)
* In the 2nd level (the root being the 1st level)
* The number of characters displayed depends on the
level. Each level down has 2 single-byte characters
(1 double-byte character) less.
When track list
displayed
Files names: 49 single-byte characters (24 double-
byte characters)
*1 Depending on the characters used, you may not be able to input the maximum number of characters.