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Appendix
Glossary
Bit Stream
A signal that is compressed and changed into digital
format. Then depending on the decoder it can be
processed as 5.1 multi-channel audio.
Channel (ch)
A channel is an audio type that has been divided based
on range and other characteristics.
E.g. 5.1 channel
• Front Speakers, Left (1ch), Right (1ch)
• Center Speaker (1 ch)
• Surround Speakers, Left (1ch), Right (1ch)
• Subwoofer (1 ch x 0.1* = 0.1 ch)
* In contrast to a full 1-channel band, a component designed
to enhance low frequency sound for added effect.
Cinema DSP (Digital Sound Field
Processor)
Dolby Surround and DTS were originally designed for
the movie theater, so playing the same program at home
would produce disparate listening experiences
depending on variables like the room size, walling and
number of speakers.
Yamaha Cinema DSP applies original sound field
technology based on a wealth of real-world data
measurements to reproduce Dolby Pro Logic, Dolby
Digital and DTS sound, combining them with acoustic
scale, depth and tone so that you can experience the
presence of a movie theater at home.
Component Video Signal
A component video signal is separated into one
luminance Y-signal and two chrominance P
B/CB and PR/
C
R signals. Since each signal is sent independently, color
can be reproduced more faithfully. The component
signal is also called a color-difference signal by the way
it subtracts the luminance signal from the color signals.
Decoder
A device that converts encoded data on DVD and other
media back to its original audio or video signal.
Dolby Digital
Dolby Digital is a digital surround sound system that
gives you completely independent multi-channel audio.
With 3 front channels (left, center, and right), and 2
surround stereo channels, Dolby Digital provides 5 full-
range audio channels. With an additional channel
especially for bass effects, called LFE (low frequency
effect), the system has a total of 5.1 channels.
By using 2-channel stereo for the surround speakers,
more accurate moving sound effects and surround sound
environment can be reproduced, like the rustling of trees
or sound of waves.
Dolby Pro Logic
A surround system that takes a 4-channel signal and
records it as a 2-channel signal, then by way of some
arithmetic processing converts back to an independent 4-
channel signal for playback.
Dolby Pro Logic II
Takes any 2-channel source and reproduces dynamic
5.1-channel surround with excellent separation using
special signal processing. You can experience Dolby Pro
Logic II in MOVIE mode and MUSIC mode for stereo.
You can even enjoy old movies that were only recorded
in 2-channel audio (excluding monaural) in powerful
5.1-channel surround.
DTS (Digital Theater Systems)
The 5.1-channel surround system adopted by most
movie theaters. With an abundance of audio data, it is
able to provide authentic sounding effects.
Dynamic Range
The difference between the smallest sound that can be
heard above the equipment noise and the biggest sound
that can be heard without distortion is the dynamic
range.
Film and Video Data
In general, DVD media can be classified into the 2 types
below.
• Film Data
Video recorded at 24 frames/second. (The film used
for shooting movies is recorded at 24 frames/second.)
Recently 30 frames/second progressive video has
made its debut.
• Video Data
Video recorded at 30 frames/second.
CinemaStation will automatically recognize whether the
source recorded on DVD is film or video, then select the
best method to convert it into progressive output.
Interlace and Progressive Outputs
Up to now the standard video signal has been NTSC
with 525i (i: interlaced) scan lines. In contrast, 525p (p:
progressive) is a high-density signal with double the
number of scan lines.
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