Pioneer CD/MP3 Manuel d'utilisateur télécharger pdf (Page 48)

10

Section

Additional Information

En

48

Te r m s

Bit rate

This expresses data volume per second, or bps

units (bits per second). The higher the rate, the

more information is available to reproduce the

sound. Using the same encoding method (such

as MP3), the higher the rate, the better the

sound.

ID3 Tag

This is a method of embedding track-related

information in a MP3 file. This embedded infor-

mation can include the track title, the artist’s

name, the album title, the music genre, the year

of production, comments and other data. The

contents can be freely edited using software

with ID3 Tag editing functions. Although the

tags are restricted to the number of characters,

the information can be viewed when the track is

played back.

ISO9660 format

This is the international standard for the format

logic of CD-ROM folders and files. For the

ISO9660 format, there are regulations for the

following two levels.

Level 1:

The file name is in 8.3 format (the name con-

sists of up to 8 characters, half-byte English

capital letters and half-byte numerals and the

“_” sign, with a file-extension of three charac-

ters.)

Level 2:

The file name can have up to 31 characters

(including the separation mark “.” and a file

extension). Each folder contains less than 8

hierarchies.

Extended formats

Joliet:

File names can have up to 64 characters.

Romeo:

File names can have up to 128 characters.

m3u

Playlists created using the “WINAMP” software

have a playlist file extension (.m3u).

Multi-session

Multi-session is a recording method that allows

additional data to be recorded later. When

recording data on a CD-ROM, CD-R or CD-RW,

etc., all data from beginning to end is treated as

a single unit or session. Multi-session is a

method of recording more than 2 sessions in

one disc.

MP3

MP3 is short for MPEG Audio Layer3. It is an

audio compression standard set by a working

group (MPEG) of the ISO (International

Standards Organization). MP3 is able to com-

press audio data to about 1/10th the level of a

conventional disc.

Packet write

This is a general term for a method of writing on

CD-R, etc. at the time required for a file, just as

is done with files on floppy or hard discs.

VBR

VBR is short for Variable Bit Rate. Generally

speaking CBR (Constant Bit Rate) is more

widely used. But to flexibly adjust the bit rate

according to the needs of audio compression, it

is possible to achieve compression prioritizes

sound quality.

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