Loading ...
Loading ...
Loading ...
5-42 Audio
MP3 audio
What is MP3?
MP3 (the name is an abbreviation of
‘MPEG Audio Layer 3’) is a compression
format for digital audio. It was developed
by the Motion Picture Experts Group. It
permits audio data to be shrunk by a factor
of approximately 10 with no loss of sound
quality, meaning that the audio on 10 con-
ventional CDs can be fitted onto a single
CD-R or CD-RW (assuming a bit rate of
128 kbps and a sampling frequency of
44.1 kHz).
NOTE
y MP3 encoding and writing software
is not supplied with the audio system.
y CD writing software is not supplied
with the audio system.
Creating MP3 files
y To create a high-quality MP3 file, it is
advisable to have a high bit rate (128 kbps
or higher) and a high sampling frequency.
y If a file is created with a variable bit rate
(VBR), the elapsed time during playback
may not be displayed correctly and the
sound may skip.
y The sound quality during playback de-
pends upon the encoder and bit rate. De-
tailed information can be found in the us-
er’s manuals for encoder software and
writing software.
y A fixed bit rate of 128 kbps or higher is
recommended.
Saving MP3 files on a disc
y Do not save any non-MP3 file on a disc.
Also, do not save any unnecessary folder
on a disc.
y If many folders and/or non-MP3 files are
saved on a disc, a delay will be caused be-
fore playback begins.
y If a disc contains both Compact Disc-
Digital Audio (CD-DA) files and MP3 files,
the system will play only the CD-DA files.
y Add the extension ‘.MP3’ to the name of
every MP3 file. The system will not play
any file that has either no extension or an
extension other than ‘.MP3’.
y Do not add the extension ‘.MP3’ to the
name of any non-MP3 file. Doing so could
lead to speaker damage.
y The system supports multi-session re-
cording, so disc-at-once recording is rec-
ommended.
y The system does not support packet
writing software.
y The system does not have a playlist
function.
y The system may not be able to display
and play certain MP3 files depending on
500034
Loading ...
Loading ...
Loading ...