compression ratio MAZDA MODEL 3 4-DOOR 2015 Owners Manual

5–22
Interior Features
Audio System
Operating 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.
 y This audio system handles MP3 fi les
that have been recorded on CD-R/CD-
RW/CD-ROMs.
 y  When naming an MP3 fi le, be sure to
add an MP3 fi le extension (.mp3) after
the fi le name.
 y The number of characters which can be
displayed is restricted.
CAUTION
This unit can only play MP3 fi les that
have an MP3 fi le extension (.mp3)
attached. Do not attach an MP3 fi le
extension to any other type fi le as it
could cause noise to be emitted or a
malfunction in the unit.
Specialized glossary
M P 3
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
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.
CAUTION
This unit plays fi les with the (.wma) fi le
extension as a WMA fi le. Do not use the
WMA fi le extension for fi les other than
WMA fi les. Otherwise, it could result in
noise or a malfunction.
 y  WMA fi les written under specifi cations
other than the indicated specifi cation
may not play normally or fi les or folder
names may not display correctly.
 y  The fi le extension may not be provided
depending on the computer operating
system, version, software, or settings. In
this case, add the fi le extension “.wma”
to the end of the fi le name, and then
write it to the disc.
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5–23
Interior Features
Audio System
Operating Tips for AAC
AAC stands for Advanced Audio Coding,
which is standardized voice compression
established by the ISO
*1 working group
(MPEG). Audio data can be created and
stored at a higher compression ratio than
MP3.
This unit plays fi les with the extensions
(.aac/.m4a/.wav
*2 ) as the AAC fi les.
*1 International Organization for Standardization
*2 Type B
CAUTION
Do not use an audio fi le extension on
fi les other than audio fi les. In addition,
do not change the audio fi le extension.
Otherwise, the unit will not recognize
the fi le correctly resulting in noise or a
malfunction.
 y  AAC fi les written under specifi cations
other than the indicated specifi cation
may not play normally or fi les or folder
names may not display correctly.
 y  The fi le extension may not be provided
depending on the computer operating
system, version, software, or settings. In
this case, add the fi le extension “.aac ”,
“.m4a”, or “.wav
*2 ” to the end of the fi le
name, and then write it to the memory.
 *2 Type B
Operating Tips for OGG
OGG is the audio compression format for
Xiph. Org Foundation.
Audio data can be created and stored at a
higher compression ratio than MP3.
CAUTION
This unit plays fi les with the (.ogg) fi le
extension as a OGG fi le. Do not use the
OGG fi le extension for fi les other than
OGG fi les. Otherwise, it could result in
noise or a malfunction.
 y  OGG fi les written under specifi cations
other than the indicated specifi cation
may not play normally or fi les or folder
names may not display correctly.
 y  The fi le extension may not be provided
depending on the computer operating
system, version, software, or settings. In
this case, add the fi le extension “.ogg” to
the end of the fi le name, and then write
it to the disc.
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9–4
Specifi cations
Specifi cations
Specifi cations
Engine
Item Specifi
cation
SKYACTIV-G 2.0 SKYACTIV-G 2.5
Type DOHC-16V in-line, 4-cylinder
Bore × Stroke 83.5 × 91.2 mm (3.29 × 3.59 in) 89.0 × 100 mm (3.50 × 3.94 in)
Displacement 1,997.6 ml (1,997.6 cc) 2,488.5 ml (2,488.5 cc)
Compression ratio 13.0
Electrical System
Item Classifi cation
Battery Q-85 *1
12V-60Ah/20HR *2 or 12V-65Ah/20HR *2
Spark-plug number
Mazda Genuine spark
plug*3 PE5R-18-110 or PE5S-18-110
*1 Q-85 is designed for i-ELOOP system. Only Q-85 should be used to ensure correct operation of i-ELOOP\
system. Consult an Authorized Mazda Dealer for details.
*2 Not for i-ELOOP system.
*3 This spark plug provides the SKYACTIV-G engine with optimum performance. Contact an Authorized Mazda Dealer for details.
CAUTION
When cleaning the iridium plugs, do not use a wire brush. The fi ne particulate coating on
the iridium alloy and platinum tips could be damaged.
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