compression ratio INFINITI EX 2013 Owner's Manual

Compressed Audio Files (MP3/
WMA/AAC)
Explanation of terms:
.MP3 —MP3 is short for Moving Pictures
Experts Group Audio Layer 3. MP3 is
the most well known compressed
digital audio file format. This format
allows for near “CD quality”sound, but
at a fraction of the size of normal audio
files. MP3 conversion of an audio track
can reduce the file size by approxi-
mately a 10:1 ratio (Sampling: 44.1
kHz, Bit rate: 128 kbps) with virtually
no perceptible loss in quality. The
compression reduces certain parts of
sound that seem inaudible to most
people.
. WMA —Windows Media Audio (WMA) is
a compressed audio format created by
Microsoft as an alternative to MP3. The
WMA codec offers greater file compres-
sion than the MP3 codec, enabling
storage of more digital audio tracks in
the same amount of space when
compared to MP3s at the same level
of quality.
. AAC/M4A —Advanced Audio Coding
(AAC) is a lossy audio compression
format. Audio files that have been encoded with AAC are generally smaller
in size and deliver a higher quality of
sound than MP3.
. Bit rate —Bit rate denotes the number
of bits per second used by a digital
music file. The size and quality of a
compressed digital audio file is deter-
mined by the bit rate used when
encoding the file.
. Sampling frequency —Sampling fre-
quency is the rate at which the samples
of a signal are converted from analog to
digital (A/D conversion) per second.
. Multisession —Multisession is one of
the methods for writing data to media.
Writing data once to the media is called
a single session, and writing more than
once is called a multisession.
. ID3/WMA Tag —The ID3/WMA tag is the
part of the encoded MP3 or WMA file
that contains information about the
digital music file such as song title,
artist, album title, encoding bit rate,
track time duration, etc. ID3 tag in-
formation is displayed on the Album/
Artist/Track title line on the display.
* Windows
®and Windows Media®are
registered trademarks or trademarks of
Microsoft Corporation in the United States of America and/or other countries.
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4-66Monitor, climate, audio, phone and voice recognition systems
Compressed Video Files (models
with navigation system)
Explanation of terms:
.DivX®- DivX®refers to the DivX®codec
owned by DivX, Inc. used for a lossy
compression of video based on MPEG-
4.
. AVI - AVI stands for Audio Video
Interleave. It is a standard file format
originated by Microsoft Corporation. A
“.divx” encoded file can be saved into
the “.avi” file format for playback on
this system if it meets the requirements
stated in the table in this section.
However, not all the “.avi”files are
playable on this system since different
encodings can be used than the DivX
®
codec.
. ASF - ASF stands for Advanced Systems
Format. It is a file format owned by
Microsoft Corporation. Note: Only “.
asf” files that meet the requirements
stated in the table in this section can
be played.
. Bit rate —Bit rate denotes the number
of bits per second used by a digital
video file. The size and quality of a
compressed digital audio file is deter- mined by the bit rate used when
encoding the file.

Angle (DVD-VIDEO):
If the DVD contains different angles (such
as moving images), the current image
angle can be switched to another one.
Select the“Angle” key. The angle will
change each time the “+”side or “−”side
is selected.
Angle Mark (DVD-VIDEO):
When this item is turned on, an angle mark
will be shown on the bottom of the screen
if the scene can be seen from a different
angle.
Menu Skip (DVD-VIDEO):
DVD menus are automatically configured
and the contents will be played directly
when the “Menu Skip” key is turned on.
Note that some discs may not be played
directly even if this item is turned on.
CM Skip (DVD-VIDEO):
Select the “CM Skip” key. Choose the
setting time from 15, 30 or 60 seconds by
selecting the “+”side or “−”side.
DRC (DVD-VIDEO, DVD-VR):
DRC (Dynamic Range Compression) auto-
matically adjusts the soundtrack volume
level to maintain a more even sound to the
speakers. DVD Language (DVD-VIDEO, VIDEO-CD):
Select the “DVD Language” key to open the
number entry screen. Input the number
corresponding to the preferred language
and select the “OK”key. The DVD top menu
language will be changed to the one
specified.
Display:
To adjust the image quality of the screen,
select the preferred adjustment items.
Audio:
Select the preferred language for audio.
Subtitle (DVD-VIDEO, DVD-VR):
Select the preferred language for subtitles.
Display Mode (DVD-VIDEO, VIDEO-CD, DVD-
VR):
Select from the “Full”,“Wide”, “Normal” or
“Cinema” modes.
Title List (DVD-VR):
Select the preferred title from the list.
Play Mode:
Select the preferred play mode.
PG/PL Mode (DVD-VR):
Select the “PG”
or“PL” mode.
SAA3471
USB MEMORY OPERATION
Audio main operation
Open the console lid and connect a USB
memory
*1as illustrated. Then, push the
DISC·AUX or AUX button repeatedly to
switch to the USB memory mode.
If the system has been turned off while the
USB memory was playing, pushing the
ON·OFF/VOL control knob will start the USB
memory.
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4-82Monitor, climate, audio, phone and voice recognition systems
Input the number to be searched and
select the“OK”key.
The specified folder/file will be played.
. Display
To adjust the image quality of the
screen, select the preferred adjustment
items.
. DRC
DRC (Dynamic Range Compression)
automatically adjusts the soundtrack
volume level to maintain a more even
sound to the speakers.
. Audio
Select the preferred language for audio.
. Subtitle
Select the preferred language for sub-
title.
. Display Mode
Select the “Normal”,“Wide”,“Cinema”
or “Full” mode.Bluetooth®STREAMING AUDIO
(models with navigation system)
Your INFINITI is equipped with Bluetooth®
Streaming Audio. If you have a compatible
Bluetooth®device with streaming audio
(A2DP profile), you can set up the wireless
connection between your Bluetooth
®de-
vice and the in-vehicle audio system. This
connection allows you to listen to the
audio from the Bluetooth
®device using
your vehicle speakers. It also may allow
basic control of the device for playing and
skipping audio files using the AVRCP
Bluetooth profile. All Bluetooth
®Devices
do not have the same level of controls for
AVRCP. Please consult the manual for your
Bluetooth
®Device for more details.
Once your Bluetooth®device is connected
to the in-vehicle audio system, it will
automatically reconnect whenever the de-
vice is present in the vehicle and you select
Bluetooth Audio from your audio system.
You do not need to manually reconnect for
each usage.
Wireless LAN (Wi-Fi) and the Bluetooth
®
functions share the same frequency band
(2.4 GHz). Using the Bluetooth®and the
wireless LAN functions at the same time
may slow down or disconnect the commu- nication and cause undesired noise. It is
recommended that you turn off the wire-
less LAN (Wi-Fi) when using the Bluetooth
®
functions.
Regulatory information
FCC Regulatory information:
.
CAUTION: To maintain compliance with
FCC’s RF exposure guidelines, use only
the supplied antenna. Unauthorized
antenna, modification, or attachments
could damage the transmitter and may
violate FCC regulations.
. Operation is subject to the following
two conditions:
1) This device may not cause inter- ference and
2) This device must accept any inter- ference, including interference that
may cause undesired operation of
the device
IC Regulatory information:
. Operation is subject to the following
two conditions:
1) This device may not cause inter- ference, and
2) This device must accept any inter- ference, including interference that