2019 NISSAN 370Z ROADSTER compression ratio

4-42Center display, heater, air conditioner, audio, phone and voice recognition systems
Compressed Audio Files (MP3/
WMA/AAC) (if so equipped)
Explanation of terms:
.MP3 — MP3 is short for Moving Pic-
tures Experts Group Audio Layer 3.
MP3 is the most well known com-
pressed 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 approximately a 10:1 ratio (Sam-
pling: 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
compression 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.
This product is protected by certain
intellectual property rights of Micro-
soft Corporation and third parties. Use
or distribution of such technology
outside of this product is prohibited
without a license from Microsoft or an authorized Microsoft subsidiary and
third parties.
. AAC/M4A — Advanced Audio Coding
(AAC) is a lossy audio compression
format. Audio files that have been
encoded with AAC are generally smal-
ler 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 conver-
sion) per second.
. Multisession — Multisession is one of
the methods for writing data to med-
ia. Writing data once to the media is
called a single session, and writing
more than once is called a multises-
sion.
. 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.

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 require-
ments 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 Sys-
tems 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.
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: Move the cursor to select a DVDmenu.
Enter: Enter the selected menu.
Move: Change the display location by mov- ing the operation key.
Back: Return to the previous screen.
Hide: Hide the operation key.
Title Menu (DVD-VIDEO):
Some menus specific to each disc will be
shown. For details, see the instructions on
the disc.
Title Search (DVD-VIDEO, DVD-VR):
The scene with the specified title will be
displayed each time the “+” side or “−” side
is selected.
Group Search (VIDEO CD):
A scene in the specified group will be
displayed each time the “+” side or “−” side
is selected.
10 Key Search (DVD-VIDEO, VIDEO-CD,
CD-DA, DVD-VR):
Select the “10 Key Search” key to open the
number entry screen. Input the number
to be searched and select the “OK” key.
The specified Title/Chapter or Group/
Track will be played.
Select No. (VIDEO-CD):
Select the “Select No.” key to open the
number entry screen. Input the number to be searched and select the “OK” key.
The specified scene will be played.
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 num-
ber corresponding to the preferred lan-
guage 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 sub-
titles.
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.
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