Mazda 2 2014 Owner's Manual page 184

Bit rate
Refers to the volume of data per second,
expressed in bps (bits per second).
Generally, the larger the number of the
transfer bit rate when compressing an
MP3 file, the more information regarding
musical reproduction it carries, and
therefore the better the sound quality.
Packet writing
A general term for the method, similar to
that used for floppy discs or hard drives,
of recording the required file in a single
increment on a CD-R and similar.
ID3 Tag
ID3 tag is a method for storing
information related to the music in an
MP3 file. Information such as track, artist
and album name can be stored. This
content can be freely edited using ID3
editing function software.
VBR
Abbreviation for Variable Bit Rate. While
CBR (Constant Bit Rate) is generally
used, VBR varies the bit rate for audio
compression according to compression
conditions and this allows for
compression with preference given to
sound quality.
qOperating 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.
Playable WMA files are as follows:
Item
Windows Media Audio Version
Specification
7.0, 8.0, 9.0
22.05 kHz (MID)
Sampling rate
44.1/48/32 kHz (HI)
32 192 kbps (Version 7.0, 8.0)
Bit rate
32 320 kbps (Version 9.0)
CAUTION
This unit plays files with the (.wma)
file extension as a WMA file. Do not
use the WMA file extension for files
other than WMA files. Otherwise, it
could result in noise or a
malfunction.
Track, artist and album name
l
information is recorded as data termed
WMA-Tag , and this information is
displayable.
WMA files written under specifications
l
other than the indicated specification
may not play normally or files or folder
names may not display correctly.
The file extension may not be provided
l
depending on the computer operating
system, version, software, or settings.
In this case, add the file extension
.wma to the end of the file name, and
then write it to the disc.
qOperating Tips for AAC
Advanced Audio Coding (AAC) is
standardized voice compression
established by the ISO
(MPEG). Audio data can be created and
stored at a higher compression ratio than
MP3.
*1 International Organization for
Standardization
Interior Comfort
Audio System
Content
*1
working group
6-17