compression ratio MAZDA MODEL CX-9 2008 Owners Manual (in English)

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About ID3 Tag display
lThis unit can only display ID3 Tag
album, track and artist names that have
been input using Ver.1.0/1.1/2.2/2.3
formats. Any other data that may have
been input cannot be displayed.
lThis unit can only display English
(including numerals) one-byte
characters. Use only English (including
numerals) one-byte characters when
inputting ID3 tags. Two-byte characters
and some special symbols cannot be
displayed.
Specialized glossary
MP3
Abbreviation for“MPEG Audio Layer 3”.
A technical standard for audio
compression as decided by an ISO
(International Organization for
Standardization) MPEG working group.
Use of MP3 allows for audio data to be
compressed to approximately a tenth of
the source data size.
ISO 9660
An international standard for logical
formatting of CD-ROM files and folders.
It is divided into three separate levels
based on differences in file naming
procedures, data configuration and other
characteristics.
Multi-session
A session is the complete amount of data
recorded from the beginning to the end of
a single period of CD-ROM, CD-R/CD-
RW data recording. Multi-session refers to
the existence of data from two or more
sessions on a single disc.Sampling
Refers to the process of encoding analog
audio data at regular intervals and
converting it to digital data. The sampling
rate refers to the number of times a
sample is taken in one second and is
expressed in Hz units. Increasing the
sampling rate improves the sound quality
but also increases the data size.
Bit rate
Refers to the volume of data per second,
expressed in bps (bits per second).
Generally, the larger the number of the
transfer bit rate when compressing an
MP3 file, the more information regarding
musical reproduction it carries, and
therefore the better the sound quality.
Packet writing
A general term for the method, similar to
that used for floppy discs or hard drives,
of recording the required file in a single
increment on a CD-R and similar.
ID3 Tag
ID3 tag is a method for storing
information related to the music in an
MP3 file. Information such as track, artist
and album name can be stored. This
content can be freely edited using ID3
editing function software.
VBR
Abbreviation for Variable Bit Rate. While
CBR (Constant Bit Rate) is generally
used, VBR varies the bit rate for audio
compression according to compression
conditions and this allows for
compression with preference given to
sound quality.
Interior Comfort
Audio System
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*AudioPilot®(Bose®Sound System-
equipped model)
AudioPilot automatically adjusts audio
volume and sound quality in accordance
with the level of noise entering the vehicle
interior while driving. When AudioPilot is
turned ON, the system automatically
calculates the conditions for optimum
hearing of sound which may be difficult
to hear depending on exterior noise.
* AudioPilot
®is a registered trademark
of Bose Corporation.
*Centerpoint®(Bose®Sound System-
equipped model)
Centerpoint offers you the experience of
5.1-channel surround sound in your
vehicle even with your conventional 2-
channel stereo DVDs inserted in the Rear
Entertainment System main unit or 2-
channel stereo CDs.
The true surround sound effect of
Centerpoint can be adjusted to any one of
five level between minimum and
maximum enhancement.
Indication Enhance level
Minimum
Low
Medium
High
Maximum
1. Turn the audio control dial and select
CENTERPT ON.
2. Press the audio control dial and select
the surround effect mode.3. Turn the audio control dial to select
CENTERPT MIN―MAX mode. The
selected mode will be indicated.
NOTElCenterpoint®operates optimally with a 2-
channel stereo CD. MP3 audio files can be
played, however, MP3 audio files encoded
with high compression may result in poor
sound quality.
lCenterpoint®is available for 2-channel
stereo audio except for AM/FM/SIRIUS/
AUX.
* Centerpoint®is a registered trademark
of Bose Corporation.
Rear seat-optimized
The rear seat-optimized function allows
passengers to optimize the audio output to
the rear for a more pleasurable acoustic
field when selecting the 5.1-channel
sound mode.
Select Surround Rr to increase the
surround effect to the rear seat. Select
Surround ALL to apply the surround
effect to all seats.
NOTE
Rear seat-optimized is only effective if a CD or
a DVD inserted in the Rear Entertainment
System main unit is 5.1 Dolby Digital/DTS
audio.
Interior Comfort
Audio System
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lThis unit corresponds to multi-session recorded disc playback at a maximum of 49
sessions.
lSome data on multi-session recorded discs cannot be played.lPlayback of discs with added sessions is possible.lPacket Write recorded discs cannot be played.lThis unit does not correspond to MP3i (MP3 interactive), MP3 PRO, and RIFF-style
MP3 formats.
lThe maximum number of characters available for a file name is as follows, however, the
displayable number of characters on this unit is limited.
Maximum number of characters in a file name
(including a separator“.”and the three letters of the file exten-
sion)
ISO9660 level 1 12
*
ISO9660 level 2 31*
Joliet extended format 64
Romeo extended format 128
* English one-byte characters (capitalized only) and underbar“_”are available.
MP3
CAUTION
This unit plays files with the (.mp3) file extension as a MP3 file. Do not use the MP3
file extension for files other than MP3 files. It may cause noise or a malfunction.
lIn a MP3 file, the track name, artist name, album name and category name are recorded
with data called“ID3-Tag”, and the information can be displayed on the monitor.
lMP3 files which do not comply with the specific standard may not be played correctly
or its file and folder name may not be displayed correctly.
lThe file extension may not be provided depending on the computer operating system,
version, software, or settings. In this case, add the file extension“.mp3”to the end of the
file name, and then write the disc.
Playlist
This unit can play playlist files. Playlist is a function that allows free setting of the
playback order of MP3 files. The file extension of a playlist file in which the order of
playback is recorded is“. m3u”or“. pls”.
Operating tips for WMA
WMA is short for Windows Media Audio and is the audio compression format used by
Microsoft.
Audio data can be created and stored at a higher compression ratio than MP3.
*Microsoft and Window Media are registered trademarks of Microsoft Corporation U.S. in
the United States and other countries.
Interior Comfort
Rear Entertainment System
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NOTElThe display angle change is not available
for discs other than multi-angle recorded
DVD discs. Refer to the instruction manual
accompanying the disc for details.
lThe screen size and angle can be changed
when On-Screen Mark and Angle Mark is
off.
Mode Priority
The priority of the inserted discs (CD-R/
CD-RW) can be selected.
Audio
Digital Output
Not used with this unit.
Audio DRC
The audio dynamic range can be adjusted
to reduce the difference between the
maximum and minimum audio output.
Audio compression of the DVD video
playback can be selected or deselected
during playback using the following
modes:
Mode Function
NONE Playback with normal volume
LINELower volume is increased to
reduce difference in volume range.
RFUse when it is still difficult to hear
sound while using LINE.
Sound quality is reduced while
using RF.
NOTE
Only sound output from the headphones is
available.
Auxiliary Input (AUX mode)
In AUX mode, AV equipment such as a
video game player or a video camera can
be used by connecting the image and
sound cables to the auxiliary terminals.
NOTE
lBefore operating, read the instruction
manual accompanying the AV equipment to
be used.
lTo listen to the Rear Entertainment System
sound from the vehicle speakers, change the
audio or navigation system sound to the
Rear Entertainment System sound.
Refer to Sound on page 6-69.
To listen to audio other than from the
speakers of the rear entertainment system, it
is necessary to use the wireless headphones
that are included. For headphone
specification, refer to
“Operation Tips for Headphones”(page
6-59).
lThe cooling fan for this unit may activate if
the temperature of the unit is high, however,
this does not indicate a malfunction.
qAuxiliary Terminals and Power
Outlet
The auxiliary terminals and power outlet
are positioned as shown in the figure.
Power outlet
(AC115V)
Auxiliary
terminals
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Interior Comfort
Rear Entertainment System
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Specifications
qEngine
Item Specification
Type DOHC-24V 60°V, 6-cylinder
Bore×Stroke 95.5 × 86.7 mm (3.75 × 3.41 in)
Displacement 3,726 ml (3,726 cc, 227.4 cu in)
Compression ratio 10.3
qElectrical System
Item Classification
Battery 12V-55AH/5HR MF
Spark-plug number CY01-18110
*1
Spark-plug gap 1.29―1.45 mm (0.051―0.057 in)
*1 ex factory
CAUTION
When cleaning the platinum plugs, do not use a wire brush. The fine particulate
coating on the iridium alloy and platinum tips could be damaged.
qLubricant Quality
Lubricant Classification
Engine oil Refer to the recommended SAE viscosity numbers on page 8-19.
Automatic transaxle fluid JWS3309
Transfer case oil API Service GL-5 (SAE 75W-140)
Rear differential oil API Service GL-5 (SAE 80W-90)
Power steering fluid ATF M-III, M-V, or equivalent (e.g. Dexron® II)
Brake fluid SAE J1703, or FMVSS116 DOT-3
10-4
Specifications
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