Page 298 of 586

2975-5. Playing an audio CD and MP3/WMA/AAC discs
5
Lexus Display Audio system
IS350/250_U (OM53C50U)
●MP3 file compatibility
• Compatible standards MP3 (MPEG1 LAYER3, MPEG2 LSF LAYER3)
• Compatible sampling frequencies MPEG1 LAYER3: 32, 44.1, 48 (kHz)
MPEG2 LSF LAYER3: 16, 22.05, 24 (kHz)
• Compatible bit rates (compatible with VBR) MPEG1 LAYER3: 32-320 (kbps)
MPEG2 LSF LAYER3: 8-160 (kbps)
• Compatible channel modes: stereo, joint stereo, dual channel and monaural
●WMA file compatibility
• Compatible standards WMA Ver. 7, 8, 9 (only compatible with Window Media Audio Standard)
• Compatible sampling frequencies
32, 44.1, 48 (kHz)
• Compatible bit rates (only compatible with 2-channel playback) Ver. 7, 8: CBR 48-192 (kbps)
Ver. 9: CBR 48-320 (kbps)
●AAC file compatibility
• Compatible standards MPEG4/AAC-LC
• Compatible sampling frequencies
11.025/12 /16 /22.05/24/32 /44.1 /48 (kHz)
• Compatible bit rates 16-320 (kbps)
• Compatible channel modes: 1 ch and 2 ch
●Compatible media
Media that can be used for MP3, WMA and AAC playback are CD-Rs and CD-RWs.
Playback in some instances may not be poss ible if the CD-R or CD-RW is not final-
ized. Playback may not be possible or the audio may jump if the disc is scratched or
marked with fingerprints.
●Compatible disc formats
The following disc formats can be used.
• Disc formats: CD-ROM Mode 1 and Mode 2 CD-ROM XA Mode 2, Form 1 and Form 2
• File formats: ISO9660 Level 1, Level 2, (Romeo, Joliet)
UDF (2.01 or lower)
MP3, WMA and AAC files written in any fo rmat other than those listed above may
not play correctly, and their file names and folder names may not be displayed cor-
rectly.
Items related to standards an d limitations are as follows.
• Maximum directory hierarchy: 8 levels (including the root)
• Maximum length of folder names/file names: 32 characters
• Maximum number of folders: 192 (including the root)
• Maximum number of files per disc: 255
Page 307 of 586

3065-6. Using an external device
IS350/250_U (OM53C50U)
●MP3, WMA and AAC files
MP3 (MPEG Audio LAYER 3) is a standard audio compression format.
Files can be compressed to approximately 1 /10 of their original size using MP3 com-
pression.
WMA (Windows Media Audio) is a Microsoft audio compression format. This format
compresses audio data to a size smaller than that of the MP3 format.
AAC is short for Advanced Audio Coding and refers to an audio compression technol-
ogy standard used with MPEG2 and MPEG4.
MP3, WMA and AAC file and media/ formats compatibility are limited.
●MP3 file compatibility
• Compatible standards
MP3 (MPEG1 AUDIO LAYERIII, MPEG2 AUDIO LAYERIII)
• Compatible sampling frequencies MPEG1 AUDIO LAYERIII: 32, 44.1, 48 (kHz)
MPEG2 AUDIO LAYERIII: 16, 22.05, 24 (kHz)
• Compatible bit rates (compatible with VBR) MPEG1 AUDIO LAYERIII: 32-320 (kbps)
MPEG2 AUDIO LAYERIII: 8-160 (kbps)
• Compatible channel modes: stereo, joint stereo, dual channel and monaural
●WMA file compatibility
• Compatible standards WMA Ver. 7, 8, 9 (only compatible with Window Media Audio Standard)
• Compatible sampling frequencies
32, 44.1, 48 (kHz)
• Compatible bit rates (only compatible with 2-channel playback) Ver. 7, 8: CBR 48-192 (kbps)
Ver. 9: CBR 48-320 (kbps)
●AAC file compatibility
• Compatible standards MPEG4/AAC-LC
• Compatible sampling frequencies
11.025/12 /16 /22.05/24/32 /44.1 /48 (kHz)
• Compatible bit rates 16-320 (kbps)
• Compatible channel modes: 1 ch and 2 ch
●File names
The only files that can be recognized as MP3/WMA/AAC and played are those with
the extension .mp3, .wma or .m4a.
●ID3, WMA and AAC tags
ID3 tags can be added to MP3 files, making it possible to record the track title, artist
name, etc.
The system is compatible with ID3 Ver. 1.0, 1.1, and Ver. 2.2, 2.3 ID3 tags. (The number
of characters is based on ID3 Ver. 1.0 and 1.1.)
WMA tags can be added to WMA files, making it possible to record the track title and
artist name in the same way as with ID3 tags.
AAC tags can be added to AAC files, making it possible to record the track title and
artist name in the same way as with ID3 tags.
Page 343 of 586

3425-11. Bluetooth®
IS350/250_U (OM53C50U)
■Compatible models
The Bluetooth® audio system supports portable audio players with the following specifi-
cations
●Bluetooth® specifications:
Ver. 2.0 or higher (Recommended: Ver. 3.0 +EDR or higher)
●Profiles:
• A2DP (Advanced Audio Distribution Profile) Ver. 1.0, or higher (Recommended: Ver. 1.2 or higher)
This is a profile to transmit stereo audio or high quality sound to the audio system.
• AVRCP (Audio/Video Remote Control Profile) Ver. 1.0 or higher (Recommended: Ver. 1.4 or higher)
This is a profile to allow re mote control the A/V equipment.
However, please note that some functions may be limited depending on the type of por-
table audio player connected.
The hands-free system supports cellular ph ones with the following specifications.
●Bluetooth® specification:
Ver. 2.0 or higher (Recommended: Ver. 3.0 +EDR or higher)
●Profiles:
• HFP (Hands Free Profile) Ver. 1.0 or higher (Recommended: Ver. 1.6 or higher) This is a profile to allow hands-free phone calls using a cellular phone or head set. It
has outgoing and incoming call functions.
• OPP (Object Push Profile) Ver. 1.1 or higher (Recommended: Ver. 1.1) This is a profile to transfer phonebook data. When a Bluetooth
® compatible cellular
phone has both PBAP and OPP, OPP cannot be used.
• PBAP (Phone Book Access Profile) Ver. 1.0 or higher (Recommended: Ver. 1.1) This is a profile to transfer phonebook data.
• MAP (Message Access Profile) Ver.1.0 or higher
This is a profile to using phone message.
If the cellular phone does not support HFP, you cannot register it with the hands-free sys-
tem. OPP, PBAP or MAP services must be selected individually.