Yamaha CRX-D430, Руководство пользователя

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GLOSSARY
20
En
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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.
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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.
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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.
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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