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37
Analog sound can only be transmitted through
two channels.
F
FLAC [Free Lossless Audio Codec]
An audio format similar to MP3, but lossless,
meaning that audio is compressed in FLAC
without loss in quality.
FM (Frequency Modulation)
In radio broadcasting: a method of modulation
in which the frequency of the carrier voltage
is varied with the frequency of the modulation
voltage.
FullSound
FullSound™ is an innovative technology
designed by Philips. FullSound™ faithfully
restores sonic details to compressed music,
enhancing it to provide a full sound experience
without any distortion.
J
JPEG
A very common digital still picture format.
A still-picture data compression system
proposed by the Joint Photographic Expert
Group, which features small decrease in image
quality in spite of its high compression ratio.
Files are recognized by their le extension
‘.jpg’ or ‘.jpeg.’
K
Kbps
Kilobits per second. A digital-data-rate
measurement system which is often used
with highly compressed formats such as AAC,
DAB, MP3 etc. The higher the amount, the
better the quality generally is.
18 Glossary
A
Album art
Vorbis is a free and open source, lossy audio
codec project and is intended to serve as a
replacement for MP3. It is most commonly
used in conjunction with the Ogg container
and is therefore called Ogg Vorbis.
Album art
Album art is a feature that displays the
artwork (cover picture) of a music album. This
display enables the user to quickly identify
a music album. The artwork les for music
albums can be downloaded from the Internet.
APE
A lossless audio le compression format by
Monkey’s Audio that makes bit-for-bit copies
without sacricing quality.
C
Compression
In audio terms, this is a process of temporarily
or permanently reducing audio data for more
efcient storage or transmission. A temporary
reduction in le size is called ‘non-lossy’
compression, and no information is lost. A
permanent reduction in le size (such as with
MP3 les) is called ‘lossy’ compression, and
involves discarding unnecessary information
which is irretrievably lost.
D
Decibel (dB)
A unit of measure used to express relative
difference in power or intensity of sound.
Digital Audio
Digital Audio is a sound signal that has been
converted into numerical values. Digital sound
can be transmitted through multiple channels.
English
EN
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