Compressed audio files (mp3/wma/ aac) – NISSAN 2014 Quest - Owner's Manual User Manual

Page 241

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Monitor, heater, air conditioner, audio, phone and voice recognition systems

devices, USB hard drives and iPod

®

players.

Some USB devices may not be supported by
this system.
. Partitioned USB devices may not be played

correctly.

. Some characters used in other languages

(Chinese, Japanese, etc.) are not displayed
properly on display. Using English language
characters with a USB device is recom-
mended.

General notes for USB use:

Refer to your device manufacturer’s owner
information regarding the proper use and care
of the device.

Notes for iPod

®

use:

iPod

®

is a trademark of Apple Inc., registered in

the U.S. and other countries.
. Improperly plugging in the iPod

®

may cause

a checkmark to be displayed on and off
(flickering). Always make sure that the iPod

®

is connected properly.

. An iPod nano

®

(1st Generation) may remain

in fast forward or rewind mode if it is
connected during a seek operation. In this
case, please manually reset the iPod

®

.

. An iPod nano

®

(2nd Generation) will con-

tinue to fast-forward or rewind if it is
disconnected during a seek operation.

. An incorrect song title may appear when the

Play Mode is changed while using an iPod
nano

®

(2nd Generation)

. Audiobooks may not play in the same order

as they appear on an iPod

®

.

. Large video files cause slow responses in an

iPod

®

. The vehicle center display may

momentarily black out, but will soon recover.

. If an iPod

®

automatically selects large video

files while in the shuffle mode, the vehicle
center display may momentarily black out,
but will soon recover.

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
approximately 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 Micro-
soft 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.

. AAC/M4A (if so equipped) — 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 determined by the bit rate used
when encoding the file.

. Sampling frequency — Sampling frequency

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.

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