Audio Function

The MP3/WMA playback function enables music to play for a long time: the user need not change the CD during a long trip. The text display function is also adopted so that the title name and artist name of the ID3 tag/WMA tag can be displayed.
Bluetooth®audio function is adopted to play music data in the portable audio via wireless communication.
The adoption of the vehicle speed interlock sound volume function reduces the burden of the volume adjustment by the difference between the noises when the vehicle is stopped or running. In addition, the vehicle speed interlock sound volume function can perform ON/OFF setting and sound volume adjustment on a scale of one to five.

MP3/WMA Playback Function

This function enables the playback of compressed music files, such as MP3 music files used for the most widespread broadband music distribution and WMA music files played back with a music player generally built in Windows® personal computers.

NOTE:

MP3 stands for MPEG AUDIO LAYER3. It is the compression standard defined by "MPEG", a joint activity organization of ISO and IEC (the international standardization groups).
WMA stands for Windows Media Audio. It is the sound data compression standard formulated by Microsoft Corporation.

PLAYABLE DATA

MP3

WMA⁽¹⁾

Media compliant

CD-R
CD-RW

Directory hierarchy

Max. number of files

510 (Max. 255 files for one folder)

Max. number of folders

255 (including the root folder)

Compliant file system

ISO9660 LEVEL 1, 2, Joliet, Romeo

Supported versions⁽²⁾

Playable sampling frequency

Version: MPEG1 Audio Layer3

32kHz, 44.1kHz, 48kHz

Version: WMA7, WMA8, WMA9

32kbps/22.05kHz, 32kHz, 44.1kHz
36kbps/32kHz
40kbps/32kHz
44kbps/32kHz
48kbps/32kHz 44.1kHz
64kbps/32kHz, 44.1kHz
80kbps/44.1kHz
96kbps/44.1kHz
128kbps/44.1kHz, 48kHz
160kbps/44.1kHz, 48kHz,
192kbps/44.1kHz, 48kHz

Version: MPEG2 Audio Layer3

16kHz, 22.05kHz, 24kHz

Playable bit rate

8 - 320 kbps / VBR⁽⁴⁾

Viewable ID3 / WMA tag (Song Title, Artist Name)

Ver. 1.0, Ver. 1.1, Ver. 2.2, Ver. 2.3, Ver. 2.4

Ver.8, Ver.9, Ver.10

Limit to number of text letters

WMA-TAG: 60 characters
ID3-TAG (Ver. 1.0/1.1): 30 characters
ID3-TAG (Ver. 2.2/2.3/2.4): 60 characters

Letter code that can be displayed⁽³⁾

01: SHIFT-JIS
02: UNICODE
03: UTF-16

⁽¹⁾	Protected WMA files (DRM) cannot be played.

⁽²⁾	Files created with a combination of 48 kHz sampling frequency and 64 kbps bit rate cannot be played.

⁽³⁾	Available codes depend on what kind of media, versions and information are going to be displayed.

⁽⁴⁾	When VBR files are played, the playback time may not be displayed correctly.

Vehicle Speed Interlock Volume Function

The AV control unit receives the vehicle speed signal from the combination meter via CAN communication and changes the sound volume in conjunction with the vehicle speed.
Using the vehicle speed interlock sound volume function, ON/OFF setting can be carried out as preferred by users, and sound volume variation caused by vehicle speed change can be adjusted on a scale of one to three.

Fig 1: Vehicle Speed Interlock Volume Pattern
Courtesy of NISSAN NORTH AMERICA, INC.

Bluetooth®Audio Function

Bluetooth®audio function is adopted to play music data in the portable audio in wireless communication.
Five units of Bluetooth® communication devices including audio devices and cellular phones can be registered to the AV control unit.
When the Bluetooth® audio is connected to the portable audio through Bluetooth®, it can play the music data in the portable audio.
When the Bluetooth® audio is playing the data, operations of the other applications are as shown in the following table.

Cellular phone operation (control) status		Bluetooth® audio playback status
Hands-free phone communication	Hands-free phone incoming call	Answering the call stops audio playback temporarily.
CARWINGS service	Information channel and E-mail	Audio playback does not stop.
CARWINGS service	Information channel and E-mail	Audio playback stops temporarily during data communication. After the communication has been completed, playback resumes.
Telephone book transfer		Audio playback does not stop.
Telephone book transfer		For Bluetooth®audio, audio playback stops temporarily. After the telephone book has been transferred, playback resumes.

BLUETOOTH® COMPLIANT PROFILE

Profile name	Abbreviation	Version
Advanced Audio Distribution Profile	A2DP	Ver. 1.2
Audio Video Remote Control Profile	AVRCP	Ver. 1.3

Satellite Radio

Satellite radio tuner is built into AV control unit.
Audio signal and data signal (satellite radio) are received by satellite antenna. There are input to AV control unit. AV control unit outputs audio signal to each speaker and data signal to display unit.