2007 Lexus IS250 Operating the lights and windshield wipers / LEXUS 2007 IS350/250 OWNER'S MANUAL (OM53578U)

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3-2. Using the audio system
3
Interior features
●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)
MP3 and WMA files written in any format other than those listed above may
not play correctly, and their file names and folder names may not be dis-
played correctly.
Items related to standards and limitations are as follows.
• Maximum directory hierarchy: 8 levels
• Maximum length of folder names/file names: 32 characters
• Maximum number of folders: 192 (including the root)
• Maximum number of files per disc: 255
●File names
The only files that can be recognized as MP3/WMA and played are those with
the extension .mp3 or .wma.
●Multi-sessions
As the audio system is compatible with multi-sessions, it is possible to play discs
that contain MP3 and WMA files. However, only the first session can be played.
●ID3 and WMA tags
ID3 tags can be added to MP3 files, making it possible to record the track title
and 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.

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3-2. Using the audio system
●MP3 and WMA playback
When a disc containing MP3 or WMA files is inserted, all files on the disc are first
checked. Once the file check is finished, the first MP3 or WMA file is played. To
make the file check finish more quickly, we recommend you do not write in any
files other than MP3 or WMA files or create any unnecessary folders.
Discs that contain a mixture of music data and MP3 or WMA format data cannot
be played.
●Extensions
If the file extensions .mp3 and .wma are used for files other than MP3 and WMA
files, they will be mistakenly recognized and played as MP3 and WMA files. This
may result in large amounts of interference and damage to the speakers.
●Playback
• To play MP3 file with steady sound quality, we recommend a fixed bit rate of
128 kbps and a sampling frequency of 44.1 kHz.
• CD-R or CD-RW playback may not be possible in some instances, depend-
ing on the characteristics of the disc.
• There is a wide variety of freeware and other encoding software for MP3
and WMA files on the market, and depending on the status of the encoding
and the file format, poor sound quality or noise at the start of playback may
result. In some cases, playback may not be possible at all.
• When files other than MP3 or WMA files are recorded on a disc, it may take
more time to recognize the disc and in some cases, playback may not be
possible at all.
• Microsoft, Windows, and Windows Media are the registered trademarks of
Microsoft Corporation in the U.S.A. and other countries.

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NOTICE
■CDs and adapters that cannot be used
Do not use the following types of CDs or 3 in. (8 cm) CD adapters.
Doing so may damage the CD player and render the CD insert/eject function
unusable.
●CDs that have a diameter that is not 4.7 in.
(12 cm).
●Low-quality and deformed CDs.
●CDs with a transparent or translucent
recording area.
●CDs that have had tape, stickers or CD-R
labels attached to them, or that have had
the label peeled off.

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3-2. Using the audio system
NOTICE
■CD player precautions
Failure to follow the precautions below may result in damage to the CDs or the
player itself.
●Do not insert anything other than CDs into the CD slot.
●Do not apply oil to the CD player.
●Store CDs away from direct sunlight.
●Never try to disassemble any part of the CD player.
●Do not insert more than one CD at a time.

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Interior features
Optimal use of the audio system
Ty p e A
Ty p e B
Adjusting the sound quality
Changing the sound quality modesChanging the listening positionAdjusting the ASL
Adjusting the sound quality
Changing the sound quality modesAdjusting the ASL

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3-2. Using the audio system
Adjusting the Automatic Sound Levelizer (ASL)
Press .
The ASL switches between ON and OFF modes each time the switch is
pressed.
ASL automatically adjusts the volume and tone quality according to the noise
level as you drive your vehicle.
Changing the listening position (type A only)
The sound feel setting can be changed to produce the best sound for
each listening position.
Press (position selector) to change the setting.
The display changes as follows each time the button is pressed.
Adjusting sound quality and volume balance
■Changing sound quality modes
Press
Pressing the button changes the sound mode in the following order.
BASMIDTREFA dBALSURROUND (type B only)
■Adjusting sound quality
Press or to adjust the level.
DisplayListening position
DRIVERPosition best suited to the driver’s seat
FRONTPosition best suited to the driver’s and front passenger
seats
REARPosition best suited to the rear seats
ALLPosition best suited to all seats

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3-2. Using the audio system
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Interior features
*: The sound quality level is adjusted individually in each AMFM or CD mode.
■Surround (type B only)
When the surround mode is ON, the matrix 7.1 surround sound system provides a
realistic sound field.
Sound qual-
ity modeMode
displayedLevelPress Press 
Bass*BAS-5 to 5
LowHighMid-range*MID-5 to 5
Tr e b l e*TRE-5 to 5
Front/rear
volume
balance
FA dF7 to R7Shifts to rearShifts to front
Left/right
volume
balance
BALL7 to R7Shifts to leftShifts to right
Surround
(type B only)SUR-
ROUNDON/OFFOFFON

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3-2. Using the audio system
Using the AUX adapter
■Operating portable audio devices connected to the audio system
The volume can be adjusted using the vehicle's audio controls. All other adjust-
ments must be made on the portable audio device itself.
■When using a portable audio device connected to the power outlet
Noise may occur during playback. Use the power source of the portable audio
device.
This adapter can be used to connect a portable audio device and listen to it
through the vehicle’s speakers.
Connect the portable audio
device.
Press .STEP1
STEP2