Yamaha CRX-D430 Owner's Manual download pdf (Page 22)

GLOSSARY

20 En

■ MP3

One of the audio compression methods used by MPEG. It

employs the irreversible compression method, which

achieves a high compression rate by thinning out the data

of hardly audible part to human ears. It is said to be

capable of compressing the data quantity by about 1/11

(128 kbps) while maintaining a similar audio quality to

music CD.

■ WMA

An audio compression method developed by Microsoft

Corporation. It employs the irreversible compression

method, which achieves a high compression rate by

thinning out the data of hardly audible part to human ears.

It is said to be capable of compressing the data quality by

about 1/22 (64 kbps) while maintaining a similar audio

quality to music CD.

■ iPod

iPod is a portable media player designed and marketed by

Apple Inc.

iPod is a trademark of Apple Inc., registered in the U.S.

and other countries.

“Made for iPod” means that an electronic accessory has

been designed to connect specifically to iPod and has been

certified by the developer to meet Apple performance

standards.

Apple is not responsible for the operation of this device or

its compliance with safety and regulatory standards.

■ DAB

DAB (Digital Audio Broadcasting), also known as digital

radio, is a new way of radio broadcasting. DAB is

broadcast using digital signals instead of analog signals,

resulting in near CD-quality sound. Analog signals (i.e.

AM/FM) are susceptible to interference (i.e. distortion and

noise) caused by electrical equipment, weather conditions,

tall buildings, mountains, etc.; digital signals are not.

Thus, with DAB, there is virtually interference-free

reception and no hiss or crackle.

Another advantage of DAB is that a large amount of

information can be carried within the digital signal. DAB

is broadcast in blocks of data called ensembles (also

known as multiplexes). Several radio programs (called

primary services) can be broadcast simultaneously in each

ensemble. This means that you can choose between

several radio programs within one frequency.

In addition to the audio signal, secondary services are also

broadcast and displayed on this unit’s front panel display.

Part of the secondary services are text data information

called DLS (Dynamic Label Segment). For more

information, see page 15.

With DAB, there is no need to remember channel

frequencies, either. All broadcasts are selected by simply

selecting the service name.

• You can tune the range of channels are 10A to 12D in UK.

• The sound quality and PAD/SI information are controlled by the

DAB broadcaster, not this unit. Not all DAB broadcasters

transmit PAD/SI information.

• DAB signals are broadcast in Band-III (174 – 240 MHz).

Glossary

Notes

Ensemble

(Multiplex)

Primary

services

Audio signal

and

Secondary

service

1 2 ... 17 18 19 20 21 22 23 24

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Yamaha CRX-D430 Owner's Manual Page 22

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