MAZDA MODEL CX-7 2011 Owners Manual (in English)

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Operating Tips for Audio
System
WARNING
Do not adjust the audio control
switches while driving the vehicle:
Adjusting the audio while driving the
vehicle is dangerous as it could
distract your attention from the
vehicle operation which could lead to
a serious accident. Always adjust the
audio while the vehicle is stopped.
Even if the audio control switches are
equipped on the steering wheel, learn
to use the switches without looking
down at them so that you can keep
your maximum attention on the road
while driving the vehicle.
CAUTION
For the purposes of safe driving,
adjust the audio volume to a level
that allows you to hear sounds
outside of the vehicle including car
horns and particularly emergency
vehicle sirens.
NOTE
lTo prevent the battery from being
discharged, do not leave the audio system
on for a long period of time when the
engine is not running.
lIf a cellular phone or CB radio is used in
or near the vehicle, it could cause noise to
occur from the audio system, however, this
does not indicate that the system has been
damaged.
qRadio Reception
AM characteristics
AM signals bend around such things as
buildings or mountains and bounce off the
ionosphere. Therefore, they can reach
longer distances than FM signals. Because
of this, two stations may sometimes be
picked up on the same frequency at the
same time.
Station 2 Station 1Ionosphere
FM characteristics
An FM broadcast range is usually about
40―50 km (25―30 miles) from the
source. Because of extra coding needed to
break the sound into two channels, stereo
FM has even less range than monaural
(non-stereo) FM.
FM Station
40—50km
(25—30 miles)
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Signals from an FM transmitter are similar
to beams of light because they do not
bend around corners, but they do reflect.
Unlike AM signals, FM signals cannot
travel beyond the horizon. Therefore, FM
stations cannot be received at the great
distances possible with AM reception.
AM wave FM wave
FM wave
100—200 km (60—120 miles)Ionosphere
Atmospheric conditions can also affect
FM reception. High humidity will cause
poor reception. However, cloudy days
may provide better reception than clear
days.
Multipath noise
Since FM signals can be reflected by
obstructions, it is possible to receive both
the direct signal and the reflected signal at
the same time. This causes a slight delay
in reception and may be heard as a broken
sound or a distortion. This problem may
also be encountered when in close
proximity to the transmitter.
Reflected wave
Direct
Flutter/Skip noise
Signals from an FM transmitter move in
straight lines and become weak in valleys
between tall buildings, mountains, and
other obstacles. When a vehicle passes
through such an area, the reception
conditions may change suddenly, resulting
in annoying noise.
Weak signal noise
In suburban areas, broadcast signals
become weak because of distance from
the transmitter. Reception in such fringe
areas is characterized by sound breakup.
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Strong signal noise
This occurs very close to a transmitter
tower. The broadcast signals are
extremely strong, so the result is noise and
sound breakup at the radio receiver.
Station drift noise
When a vehicle reaches the area of two
strong stations broadcasting at similar
frequencies, the original station may be
temporarily lost and the second station
picked up. At this time there will be some
noise from this disturbance.
Station 2
88.3 MHz Station 1
88.1 MHz
qOperating Tips for CD Player/In-
Dash CD Changer
Condensation phenomenon
Immediately after turning on the heater
when the vehicle is cold, the CD or
optical components (prism and lens) in the
CD player/In-dash CD changer may
become clouded with condensation. At
this time, the CD will eject immediately
when placed in the unit. A clouded CD
can be corrected simply by wiping it with
a soft cloth. Clouded optical components
will clear naturally in about an hour. Wait
for normal operation to return before
attempting to use the unit.
Handling the CD player/In-dash CD
changer
The following precautions should be
observed.
lDo not spill any liquid on the audio
system.
lDo not insert any objects, other than
CDs, into the slot.
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lThe CD revolves at high speed within
the unit. Defective (cracked or badly
bent) CDs should never be used.
lDo not use non-conventional discs
such as heart-shaped, octagonal discs,
etc. The disc may not eject resulting in
a malfunction.
lIf the memory portion of the CD is
transparent or translucent, do not use
the disc.
Transparent
lA new CD may have rough edges on
its inner and outer perimeters. If a disc
with rough edges is used, proper
setting will not be possible and the CD
player/In-dash CD changer will not
play the CD. In addition, the disc may
not eject resulting in a malfunction.
Remove the rough edges in advance by
using a ball-point pen or pencil as
shown below. To remove the rough
edges, rub the side of the pen or pencil
against the inner and outer perimeter of
the CD.
lWhen driving over uneven surfaces,
the sound may jump.
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lThe CD player/In-dash CD changer has
been designed to play CDs bearing the
identification logo as shown below. No
other discs can be played.
lUse discs that have been legitimately
produced. If illegally-copied discs such
as pirated discs are used, the system
may not operate properly.
lBe sure never to touch the signal
surface when handling the CDs. Pick
up a CD by grasping the outer edge or
the edge of the hole and the outer edge.
lDo not stick paper or tape on the CD.
Avoid scratching the reverse side (the
side without a label). The disc may not
eject resulting in a malfunction.
lDust, finger smudges, and dirt can
decrease the amount of light reflected
from the signal surface, thus affecting
sound quality. If the CD should
become soiled, gently wipe it with a
soft cloth from the center of the CD to
the edge.
lDo not use record sprays, antistatic
agents, or household spray cleaners.
Volatile chemicals such as benzine and
thinner can also damage the surface of
the CD and must not be used. Anything
that can damage, warp, or fog plastic
should never be used to clean CDs.
lInsert discs one by one. If two discs are
inserted at the same time, the system
may not operate properly.
lThe CD player/In-dash CD changer
ejects the CD if the CD is inserted
upside down. Also dirty and/or
defective CDs may be ejected.
lDo not insert cleaning discs in the CD
player/In-dash CD changer.
lDo not insert any disc with a peel-off
seal affixed to it.
lThis unit may not be able to play
certain CD-R/CD-RWs made using a
computer or music CD recorder due to
disc characteristics, scratches,
smudges, dirt, etc., or due to dust or
condensation on the lens inside the
unit.
lStoring CDs in the vehicle exposed to
direct sunlight or high temperature may
damage the CD-R/CD-RWs, and make
them unplayable.
lCD-R/CD-RW exceeding 700 MB
cannot be played.
lThis unit may not be able to play
certain discs made using a computer
due to the application (writing
software) setting used. (For details,
consult the store where the application
was purchased.)
lIt is possible that certain text data, such
as titles, recorded on a CD-R/CD-RW
may not be displayed when musical
data (CD-DA) is playing.
lThe period from when a CD-RW is
inserted to when it begins playing is
longer than a normal CD or CD-R.
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lCompletely read the instruction manual
and cautions for CD-R/CD-RWs.
lDo not use discs with cellophane tape
adhering, partially peeled off labels, or
adhesive material exuding from the
edges of the CD label. Also, do not use
discs with a commercially-available
CD-R label affixed. The disc may not
eject resulting in a malfunction.
qOperating tips for MP3
NOTE
Supply of this product only conveys a license
for private, non-commercial use and does not
convey a license nor imply any right to use this
product in any commercial (i.e. revenue-
generating) real time broadcasting (terrestrial,
satellite, cable and/or any other media),
broadcasting/streaming via the Internet,
intranets and/or other networks or in other
electronic content distribution systems, such as
pay-audio or audio-on-demand applications.
An independent license for such use is
required. For details, please visit
http://www.mp3licensing.com.
lThis audio system handles MP3 files
that have been recorded on CD-R/CD-
RW/CD-ROMs. Discs that have been
recorded using the following formats
can be played:
lISO 9660 level 1lISO 9660 level 2lJoliet extended formatlRomeo extended formatlThis unit handles MP3 files
conforming to the MP3 format
containing both header frames and data
frames.
lThis unit can play multi-session
recorded discs that have up to 40
sessions.
lThis unit can play MP3s with sampling
frequencies of 16/22.05/24/32/44.1/48
kHz.
lThis unit can play MP3 files that have
been recorded in bit rates of 8 kbps to
320 kbps. Nonetheless, to insure
enjoyment of music with consistent
sound quality, it is recommended to use
discs that have been recorded at a bit
rate of 128 kbps or more.
lIf a disc has both music data (CD-DA)
and MP3 files, playback of the two file
types differs depending on how the
disc was recorded.
lPacket written discs cannot be played
on this unit.
lThis unit does not play CDs recorded
using MP3i (MP3 interactive), MP3
PRO and RIFF MP3 formats.
About folders and files
lThe order of hierarchy for MP3 files
and folders during playback or other
functions is from shallow to deep. The
arrangement and playing order of a
recorded disc containing MP3 files is
as follows:
lFile number
A numerical file number is assigned
to each file in a folder in the order of
hierarchy from shallow to deep.
lFolder number
A numerical folder number is
assigned to each folder in the order
of hierarchy from shallow to deep.
NOTE
Folders and tracks (files) within the same
hierarchy play in the order they were written to
the disc depending on the write software.
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05
06
010204
03
15 4 2 3
Folder
No.
Level1
Level2Level3
Level4
Playback may not occur in the above
hierarchy depending on the audio unit.: Track (File) : Folder
lThe folder order is automatically
assigned and this order cannot be
optionally set.
lAny folder without an MP3 file will be
ignored. (It will be skipped and the
folder number will not be displayed.)
lMP3 files not conforming to the MP3
format containing both header frames
and data frames will be skipped and
not played.
lThis unit will play MP3 files that have
up to eight levels. However, the more
levels a disc has, the longer it will take
to initially start playing. It is
recommended to record discs with two
levels or less.
lA single disc with up to 512 files can
be played and a single folder with up to
255 files can be played.
lWhen naming an MP3 file, be sure to
add an MP3 file extension (.mp3) after
the file name.
lThe maximum number of characters
that can be used for file names is as
follows. However, this unit will only
display up to 32 characters, including
the file extension (.mp3).
Maximum number of
characters in a file name
(including a separator“.”
and the three letters of the
file extension)
ISO9660 level 1 12
*
ISO9660 level 2 31*
Joliet extended
format64
Romeo extended
format128
* English one-byte characters (capitalized only) and
underbar“_”are available.
CAUTION
This unit can only play MP3 files that
have an MP3 file extension (.mp3)
attached. Do not attach an MP3 file
extension to any other type file as it
could cause noise to be emitted or a
malfunction in the unit.
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.
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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.
qOperating 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 file specification
CD-R and CD-RW including WMA files
can be played with this unit. Discs which
conform to the following formats can be
played.
Playable WMA files are as follows:
Item Content
SpecificationWindows Media
Audio Version 7.0,
8.0, 9.0
Sampling
frequencyBit rate32kHz.......32,40,
48 kbps
44.1kHz.....32,48,
64, 80, 96, 128, 160,
192, 256, 320 kbps
48kHz.......64,96,
128, 160, 192 kbps
VBR (Variable Bit Rate) Supported
Channel mode Stereo/Monaural
WMA tagTitle, artist name,
album name
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. It may cause
noise or a malfunction.
lIn a WMA file, the track name, artist
name and album name are recorded
with data called“WMA-Tag”, and the
information can be displayed.
lWMA 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
“.wma”to the end of the file name, and
then write the disc.
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MEMO
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