Blaupunkt MP3000 User Manual download pdf (Page 16)

ENGLISH

E-15

Glossary

Bit rate

The bit rate expresses the amount of information transferred

per second as a number of bits. The greater the quantity of

information, the higher the bit rate.

The unit is “bits/second”. “kbps” indicates “kilo (1,000) bits/

second”.

Emphasis

The software used for recording has an “emphasis” capabil-

ity, which when turned on writes emphasis attributes on to

the audio track. When the emphasis bit is set the sound has a

smooth characteristic. However, at the current time almost all

CD players lack support for this function. It is no problem to

play back an audio track recorded with emphasis on with a

player not supporting emphasis.

Extension

In Windows and DOS personal computers, several charac-

ters are placed at the end of each file name to indicate the

type of file.

The extension consists of a period followed by three alphanu-

meric characters. The extension differs depending on file type.

The extension for MP3 files is “.mp3”.

ID3 Tags

This is a data format that allows a file name, title and artist

name etc. to be added to MP3 files.

This unit supports SONG ALBUM and ARTIST for Versions

1.0/1.1/2.2 and 2.3.

ID3 Tags are not supported for WMA files.

Multi-Session

When data is written on a CD-R disc, the data written from

the time writing starts until the time writing finishes is regarded

as a bundle called a session. The Track at Once Method al-

lows data to be added to a single disc one track at a time,

with each recording of a track being a single session.

The term multisession refers to the method of recording the

data for two or more sessions on a single disc. We recom-

mend that this unit be used for up to 10 sessions.

Structure of Folder Hierarchy

To keep data within a computer organized, related files may

be put into a folder, but in addition to files, a folder may also

have other folders put into it. Folder B may be put into folder

A, and folder C may be put into folder B so as to create a

“hierarchical structure”. The number of hierarchical levels that

can be recognized differs depending on the computer operat-

ing system. ISO9660 specifies up to 8 levels.

VBR (Variable Bit Rate)

MP3 files are normally encoded with a fixed bit rate (eg

128kbps etc.), however VBR encoding during which the bit

rate is varied while encoding is also possible. That is to say,

during periods of violent variation of sound the bit rate is in-

creased and during soundless periods the bit rate is de-

creased. Encoding in this way allows file size to be curbed

while maintaining high sound quality. However, some players

do not support VBR, so caution is required when using VBR.

Types of CD

• Audio CD(CD-DA)

This is the format used for audio CDs that can be played on

ordinary audio CD players. It is also called CD-DA (Com-

pact Disc Digital Audio).

• ISO9660 Format CD-ROM

ISO9660 is a CD-ROM standard file system determined by

ISO (International Organization for Standardization). CD-

ROMs with this format can be played by Windows and

Macintosh operating systems and also by UNIX operating

systems.

• HFS Format CD-ROM

This is a CD-ROM conforming to the HFS (Hierarchical File

System) used by Macintosh Mac OS.

• Hybrid CD-ROM

This is a CD-ROM containing a mixture of ISO9660 format

files and HFS format files.

• Mixed Mode CD

This is a CD-ROM containing both data files and audio files

on the one disc.

Mixed Mode CD is a standard developed for personal com-

puter use so the audio files on the CD cannot be played

with CD players that do not support Mixed Mode CD.

• CD Extra (Enhanced CD)

This differs from Mixed Mode CD in that the audio files are

followed on the disc by data files. CD Extra was standard-

ized by Sony and Philips to allow the audio files to be played

with an audio CD player and the data files to be read by a

personal computer.

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Blaupunkt MP3000 User Manual Page 16

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