2015 Nissan Murano Navigation System Owner's Manual - Page 37

2015 Nissan Murano Manual

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3. Audio system 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 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. 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. 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 information is displayed on the Album/Artist/Track title line on the display. Playback order . . . . The folder names of folders not containing compressed audio files are not shown on the display. The playback order is the order in which the files were written by the writing software, so . 3-7

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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.
.
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.
.
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 information
is displayed on
the
Album/Artist/Track title line on the display.
Playback order
.
The folder names of folders not containing
compressed audio files are not shown on the
display.
.
The playback order is the order in which the
files were written by the writing software, so
3. Audio system
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