audio Lexus GS450h 2010 Using The Audio System / LEXUS 2010 GS450H (OM30C81U) Repair Manual

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■DVD video disc information
●DVD video discs
Digital Versatile Disc that holds video. DVD video discs have adopted
“MPEG2”, one of the world standards of digital compression technologies. The
picture data is compressed by 1/40 on average and stored. Variable rate
encoding technology in which the volume of data assigned to the picture is
changed depending on the picture format has also been adopted. Audio data is
stored using PCM and Dolby digital, which enables higher quality of sound. Fur-
thermore, multi-angle and multi-language features will also help you enjoy the
more advanced technology of DVD video.
●Viewer restrictions
This feature limits what can be viewed in conformity with the level of restrictions
of the country. The level of restrictions varies depending on the DVD video disc.
Some DVD video discs cannot be played at all, or violent scenes are skipped or
replaced with other scenes.
Level 1: DVD video discs for children can be played.
Level 2-7: DVD video discs for children and G-rated movies can be played.
Level 8: All types of DVD video discs can be played.
●Multi-angle option
You can enjoy the same scene from different angles.
●Multi-language option
You can select the subtitle and audio languages.
●Region codes
The region codes are found on DVD players and DVD discs. If a DVD video
disc does not have the same region code as the DVD player, you cannot play
the disc on that DVD player. (P. 3 1 1 )

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●Audio
This DVD player can play linear PCM, Dolby Digital and MPEG audio format
DVD. Other decoded types cannot be played.
●Title and chapter
Video and audio programs stored in DVD video discs are divided into parts by
title and chapter.
Title: The largest unit of the video and audio programs stored on DVD video discs.
Usually, one movie, one album, or one audio program is assigned as a title.
Chapter: A title is comprised of one or more chapters.
■Sound
●Dolby Digital
Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic”, and the double-D symbol are trademarks of Dolby Labo-
ratories. Confidential unpublished works.
©1992-1997 Dolby Laboratories. All rights reserved.
This product incorporates copyright protection technology that is protected by
method claims of certain U. S. patents and other intellectual property rights
owned by Macrovision Corporation and other rights owners. Use of this copy-
right protection technology must be authorized by Macrovision Corporation,
and is intended for home and other limited viewing uses only unless otherwise
authorized by Macrovision Corporation.
Reverse engineering or disassembly is prohibited.
●DTS
“DTS” and “DTS Digital Surround” are registered trademarks of Digital Theater
System, Inc.

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■MP3 and WMA files
MP3 (MPEG Audio LAYER 3) is a standard audio compression format.
Files can be compressed to approximately 1 /10 of their original size by using MP3
compression.
WMA (Windows Media
TM Audio) is a Microsoft audio compression format.
This format compresses audio data to a size smaller than that of the MP3 format.
There is a limit to the MP3 and WMA file standards and to the media/formats
recorded by them that can be used.
●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: 64, 80, 96, 112, 128, 160, 192, 224, 256, 320 (kbps)
• MPEG2 LSF LAYER3: 64, 80, 96, 112, 128, 144, 160 (kbps)
• Compatible channel modes: stereo, joint stereo, dual channel and monaural
●WMA file compatibility
• Compatible standards
WMA Ver. 7, 8, 9
• Compatible sampling frequencies
32, 44.1, 48 (kHz)
• Compatible bit rates (only compatible with 2-channel playback)
Ver. 7, 8: CBR 48, 64, 80, 96, 128, 160, 192 (kbps)
Ver. 9: CBR 48, 64, 80, 96, 128, 160, 192, 256, 320 (kbps)
●Compatible media
Media that can be used for MP3 and WMA playback are CD-Rs and CD-RWs.
Playback in some instances may not be possible, depending on the status of the
CD-R or CD-RW. Playback may not be possible or the audio may jump if the disc
is scratched or marked with fingerprints.

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●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 displayed
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.
●Discs containing multi-session recordings
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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●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 files 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 pos-
sible at all.
• Microsoft, Windows, and Windows Media are the registered trademarks of
Microsoft Corporation in the U.S. and other countries.

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■CD-R and CD-RW discs
●CD-R/CD-RW discs that have not been subject to the “finalizing process” (a
process that allows discs to be played on a conventional CD player) cannot be
played.
●It may not be possible to play CD-R/CD-RW discs recorded on a music CD
recorder or a personal computer because of disc characteristics, scratches or
dirt on the disc, or dirt, condensation, etc. on the lens of the unit.
●It may not be possible to play discs recorded on a personal computer depend-
ing on the application settings and the environment. Record with the correct
format. (For details, contact the appropriate application manufacturers of the
applications.)
●CD-R/CD-RW discs may be damaged by direct exposure to sunlight, high
temperatures or other storage conditions. The unit may be unable to play dam-
aged discs.
●If you insert a CD-RW disc into the MP3/WMA player, playback will begin
more slowly than with a conventional CD or CD-R disc.
●Recordings on CD-R/CD-RW cannot be played using the DDCD (Double
Density CD) system.
CAUTION
■DVD video precaution
Conversational speech on some DVDs is recorded at a low volume to emphasize
the impact of sound effects. If you adjust the volume assuming that the conversa-
tions represent the maximum volume level that the DVD will play, you may be star-
tled by louder sound effects or when you change to a different audio source.
Loud sounds may have a significant impact on the human body or pose a driving
hazard. Keep this in mind when you adjust the volume.

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

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NOTICE
■Player precautions
Failure to follow the precautions below may result in damage to the discs or the
player itself.
●Do not insert anything other than discs into the disc slot.
●Do not apply oil to the player.
●Store discs away from direct sunlight.
●Never try to disassemble any part of the player.
●Do not insert more than one disc at a time.

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Listening to Bluetooth® audio
The Bluetooth® audio system enables users to enjoy music played on a por-
table player from the vehicle speaker via wireless communication.
This audio system supports Bluetooth
®, a wireless data system capable of
playing portable audio music without cables. If your portable player does
not support Bluetooth
®, the Bluetooth® audio system will not function.
Album selection
Random play
Repeat play Audio control screen display button
Track selection/fast forward/rewindVo l u m e Pow e rConnection status
Play/pause
Setting the 
sound 
(P. 3 3 9 )

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Status display
You can check such indicators as signal strength and battery charge on
the screen.
Connection status
Battery charge
IndicatorsConditions
Connection status
Blue: Good
Yellow: Bad
: Not connected
Battery chargeFullEmpty