compression ratio MAZDA MODEL CX-9 2015 Owners Manual (in English)

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Specialized glossary
MP3
Abbreviation for“MPEG Audio Layer 3 ”.
A technical standard for audio
compression as decided by the ISO
*1
MPEG working group. Use of MP3
allows for audio data to be compressed to
approximately a tenth of the source data
size.
*1 International Organization for
Standardization
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.
q
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 Windows Media are
registered trademarks of Microsoft
Corporation U.S. in the United States
and other countries.
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Playable WMA files are as follows:
ItemContent
Specification Ver 7.0, 8.0, 9.0
(standard)
Ver 10 (standard)
Sampling rate 32/44.1/48 kHz
Bit rate 32―320 kbps
CAUTION
This unit plays files with the (.wma)
file extension as a WMA file. Do not
use the WMA file extension for files
other than WMA files. Otherwise, it
could result in noise or a
malfunction.
lTrack, artist and album name
information is recorded as data termed
“WMA-Tag ”, and this information is
displayable.
lWMA files written under specifications
other than the indicated specification
may not play normally or files or folder
names may not display 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
“ .wma ”to the end of the file name, and
then write it to the disc.
q Operating Tips for AAC
Advanced Audio Coding (AAC) is
standardized voice compression
established by the ISO
*1working group
(MPEG). Audio data can be created and
stored at a higher compression ratio than
MP3.
*1 International Organization for Standardization
Playable AAC file specifications
This unit supports playback of AAC files
recorded in CD-R and CD-RW.
Playable AAC files are as follows:
Item Content
Specification MPEG-4 AAC
Sampling rate 8/11.025/12 kHz
16/22.05/24 kHz
32/44.1/48 kHz
Bit rate 24―320 kbps
CAUTION
This unit plays files with the file
extension (.m4a) as an AAC file. Do
not use the AAC file extension for files
other than AAC files. Otherwise, it
could result in noise or a
malfunction.
lSong, artist, and album name
information in the AAC file is recorded
as data termed
“iTunes, m4a, Meta-Data applicable ”,
and this information is displayable.
lAAC files written under specifications
other than the indicated specification
may not play normally or files or folder
names may not display 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
“ .m4a ”to the end of the file name, then
write it to the disc.
Interior Comfort
Audio System
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Automatic Level Control (ALC)
The automatic level control is a feature
that automatically adjusts audio volume
and sound quality according to the vehicle
speed. The volume increases in
accordance with the increase in vehicle
speed, and decreases as vehicle speed
decreases.
AudioPilot
®2*4
AudioPilot®2 automatically adjusts audio
volume and sound quality in accordance
with the level of noise entering the vehicle
interior while driving. When AudioPilot
®
2 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
®2 can be set on or off.
*4 AudioPilot®2 is a registered
trademark of Bose Corporation.
Centerpoint
®*5
Centerpoint®offers you the experience of
5.1-channel surround sound in your
vehicle even with your conventional 2-
channel stereo CDs. Centerpoint
®can be
set on or off.
*5 Centerpoint
®is a registered trademark
of Bose Corporation.
NOTE
lCenterpoint®operates optimally with a 2-
channel stereo CD. Audio files encoded
with high compression can be played,
however, they may result in poor sound
quality.
lCenterpoint®is available for 2-channel
stereo audio except for AM radio/FM radio/
AUX/Bluetooth® audio.
Sound setting reset
The settings for bass, treble, balance, and
fade can be returned to their initial
settings.
1. Touch the
on-screen button.
2. Touch the
on-screen button.
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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:
ModeFunction
NONE Playback with normal volume
LINE Lower volume is increased to
reduce difference in volume range.
RF Use 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 sound to the Rear Entertainment
System sound.
Refer to Sound Output from Vehicle
Speakers on page 6-83.
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
6-73).
lThe cooling fan for this unit may activate if
the temperature of the unit is high, however,
this does not indicate a malfunction.
q Auxiliary 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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Specifications
qEngine
Item Specification
Type DOHC-24V 60°V, 6-cylinder
Bore×Stroke 95.5 × 86.7 mm (3.75 × 3.41 in)
Displacement 3,726.2 ml (3,726.2 cc)
Compression ratio 10.3
qElectrical System
Item Classification
Battery 12V-65Ah/20HR
Spark-plug number Mazda Genuine spark plug CY02-18-110
CAUTION
When cleaning the platinum plugs, do not use a wire brush. The fine particulate
coating on the platinum alloy could be damaged.
qLubricant Quality
Lubricant Classification
Engine oil Refer to Recommended Oil on page 8-21.
Automatic transaxle fluid Mazda Genuine JWS3309
Transfer case oil API Service GL-5 (SAE 75W-140)
Rear differential oil API Service GL-5 (SAE 80W-90)
Power steering fluid Mazda Genuine ATF M-III, M-V, or equivalent (e.g. Dexron® II)
Brake fluid SAE J1703, or FMVSS116 DOT-3
NOTE
Refer to Introduction on (page 8-2) for owner's responsibility in protecting your investment.
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