Mp3 audio – Subaru 2006 Legacy User Manual

Page 215

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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

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