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GLOSSARY
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SILENT CINEMA
YAMAHA has developed a natural, realistic sound effect
DSP algorithm for headphones.
Parameters for headphones have been set for each sound
field so that accurate representations of all the sound field
programs can be enjoyed on headphones.
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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 surround speakers by
using virtual surround speakers.
It is even possible to enjoy Virtual CINEMA DSP using a
minimal two-speaker system that does not include a center
speaker.
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Composite Video signal
With the composite video signal system, the video signal
is composed of three basic elements of a video picture;
color, brightness and synchronization data. A composite
video jack on a video component transmits these three
elements combined.
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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.
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Component video signal
With the component video signal system, the video signal
is separated into the Y signal for the luminance and the P
B
and P
R
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.
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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.
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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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THX Cinema processing
THX is an exclusive set of standards and technologies
established by the world-renowned film production
company, Lucasfilm Ltd. THX grew from George Lucas’
personal desire to make your experience of the film
soundtrack, in both movie theatres and in your home
theatre, as faithful as possible to what the director
intended.
Movie soundtracks are mixed in special movie theatres
called dubbing stages and are designed to be played back
in movie theatres with similar equipment and conditions.
This same soundtrack is then transferred directly onto
Laserdisc, VHS tape, DVD, etc., and is not changed for
playback in a small home theatre environment.
THX engineers developed patented technologies to
accurately translate the sound from the movie theatre
environment into the home, correcting the tonal and
spatial errors that occur. On this product, when the THX
indicator is on, THX features are automatically added in
Cinema modes (e.g. THX Cinema, THX Surround EX).
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Re-Equalization
The tonal balance of a film soundtrack will be excessively
bright and harsh when played back over audio equipment
in the home because film soundtracks were designed to be
played back in large movie theatres using very different
professional equipment. Re-Equalization restores the
correct tonal balance for watching a movie soundtrack in a
small home environment.
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