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En
Glossary
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Sound field program information
CINEMA DSP
Since the Dolby Surround and DTS systems were
originally designed for use in movie theaters, their effect
is best felt in a theater having many speakers designed for
acoustic effects. Since home conditions, such as room
size, wall material, number of speakers, and so on, can
differ so widely, it is inevitable that there are differences in
the sound heard. Based on a wealth of actually measured
data, Yamaha CINEMA DSP uses Yamaha original DSP
technology to combine Dolby Pro Logic, Dolby Digital
and DTS systems to provide the audiovisual experience of
movie theater in the listening room of your own home.
SILENT CINEMA
Yamaha has developed a natural, realistic sound effect
DSP algorithm for headphones. Parameters for
headphones have been set for each sound field program so
that accurate representations of all the sound field
programs can be enjoyed on headphones.
Virtual CINEMA DSP
Yamaha has developed a Virtual CINEMA DSP algorithm
that allows you to enjoy DSP 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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Video information
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
output component signals.
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.
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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HDMI
HDMI (High-Definition Multimedia Interface) is the first
industry-supported, uncompressed, all-digital audio/video
interface. Providing an interface between any source (such
as a set-top box or AV receiver) and an audio/video
monitor (such as a digital television), HDMI supports
standard, enhanced or high-definition video as well as
multi-channel digital audio using a single cable. HDMI
transmits all ATSC HDTV standards and supports
8-channel digital audio, with bandwidth to spare to
accommodate future enhancements and requirements.
When used in combination with HDCP (High-bandwidth
Digital Content Protection), HDMI provides a secure
audio/video interface that meets the security requirements
of content providers and system operators. For further
information on HDMI, visit the HDMI website at
“http://www.hdmi.org/”.
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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 the 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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WAV
Windows standard audio file format, which defines the
method of recording the digital data obtained by
converting audio signals. It does not specify the
compression (coding) method so a desired compression
method can be used with it. By default, it is compatible
with the PCM method (no compression) and some
compression methods including the ADPCM method.
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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 the human
ears. It is said to be capable of compressing the data
quantity by about 1/22 (64 kbps) while maintaining a
similar audio quality to music CD.
