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•
Virtual CINEMA
DSP
YAMAHA
has developed
a virtual
CINEMA
DSP
algorithm
that allows you to enjoy DSP sound field
surround
effects even without
any rear speakers
by using
virtual
rear speakers.
It is even possible
to enjoy virtual
CINEMA
DSP using a
minimal
2-speaker
system
that does not include
a center
speaker.
•
PCM (Linear
PCM)
Linear
PCM is a signal format
under which
an analog
audio signal is digitized,
recorded
and transmitted
without
using any compression.
This is used as a method
of
recording
CDs and DVD audio. The PCM system
uses a
technique
for sampling
the size of the analog signal per
very small unit of time. Standing
for "pulse
code
modulation",
the analog signal is encoded
as pulses
and
then modulated
for recording.
•
Sampling frequency and number
of quantized
bits
When digitizing
an analog
audio signal,
the number
of
times the signal is sampled
per second
is called the
sampling
frequency,
while the degree of fineness
when
converting
the sound level into a numeric
value is called
the number
of quantized
bits.
The range
of rates that can be played back is determined
based on the sampling
rate, while
the dynamic
range
representing
the sound level difference
is determined
by
the number
of quantized
bits. In principle,
the higher the
sampling
frequency,
the wider the range
of frequencies
that can be played back, and the higher the number
of
quantized
bits, the more finely the sound level can be
reproduced.
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•
S-video
signal
With the S-video
signal system,
the video signal normally
transmitted
using a pin cable is separated
and transmitted
as the Y signal for the luminance
and the C signal for the
chrominance
through
the S-video
cable.
Using the S
VIDEO jack eliminates
video signal transmission
loss and
allows
recording
and playback
of even more beautiful
images.
•
Component
video signal
With the component
video
signal system,
the video
signal
is separated
into the Y signal for the luminance
and the
PB/CB and P_/CR signals
for the chrominance.
Color can
be reproduced
more faithfully
with this system because
each of these signals
is independent.
The component
signal is also called the "color difference
signal"
because
the luminance
signal is subtracted
from the color signal.
A monitor
with component
input jacks is required
in order
to use the component
signal for output.
65
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