Sony STR-DG520 Operating Instructions Manual page 56

• Digital Cinema Sound (DCS)
A unique sound reproduction technology for
home theater developed by Sony, in
cooperation with Sony Pictures Entertainment,
for enjoying the exciting and powerful sound
of movie theaters at home. With this "Digital
Cinema Sound" developed by integrating a
DSP (Digital Signal Processor) and measured
data. the ideal sound fiekt intended by
fihnmakers can be experienced at home.
• Dolby Digital
Digital audio encoding/decoding technology
developed by Dolby Laboratories, Inc. It
consists of front (left/right), center, surround
(left/right) and sub woofer channels. It is a
designated audio standard for DVD-video and
also known as 5.1 channel surround. Since
surround information is recorded and
reprodnced in stereo, more realistic sound with
filler presence is delivered than with Dolby
snrronnd,
• Dolby Pro Logic II
This technology converts 2 channel stereo
recorded audio into 5.1 channel for playback.
There is a MOVIE mode for movies and
MUSIC mode for stereo sources such as
nmsic. Old movies encoded in the traditional
stereo format can be enhanced with 5.1
channel surround sound.
• Dolby Surround (Dolby Pro
Logic)
Audio processing technology de_.eloped by
Dolby Laboratories, Inc. Center and mono
surround information is matrixed into two
stereo channels. When reproduced, audio is
decoded and output in 4 channel surround
sound. This is the most common audio
processing method for DVD-video.
• DTS Digital Surround
Digital audio encoding/decoding technology
l\_r theaters developed by DTS, Inc. It
compresses audio less than Dolby Digital,
delivering a higher quality sound
reprodnction.
• HDMI
(High-Definition
Multimedia
Interface)
HDMI (High-Definition Multimedia
Interface) is an interfuce that supports both
video and audio on a single digital connection,
allowing yon to enjoy high quality digital
picture and sound. The HDMI specification
supports HDCP (High-bandwidth Digital
Contents Protection), a copy protection
technology that incorporates coding
technology for digital video signals.
• L.F.E.
(Low Frequency Effects)
Sound effects of low frequencies which are
output from a sub woofer in Dolby Digital or
DTS, etc. By adding a deep bass with a
frequency between 20 to 120 Hz, audio
becomes more powerful.
• Sampling frequency
To convert analog audio to digital, analog data
should be quantified. This process is called
sampling, and the number of times per second
the analog data is quantified is called the
sampling frequency. A standard music CD
stores data quantified at 44,100 times per
second, which is expressed as a sampling
frequency of 44.1 kHz. Generally speaking, a
higher sampling frequency means better sound
quality.
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