Yamaha YSP-40D Manual Do Utilizador

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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 (LFE is counted as 0.1-channel). 
By using 2-channel stereo for the surround channels, more 
accurate moving sound effects and surround sound 
environment are possible than with Dolby Surround. The 
wide dynamic range (from maximum to minimum 
volume) reproduced by the 5 full-range channels and the 
precise sound orientation generated using digital sound 
processing provide listeners with excitement and realism 
previously unheard of.
With this unit, any sound environment from monaural up 
to a 5.1-channel configuration can be freely selected for 
your enjoyment.

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Dolby Pro Logic II is an improved technique used to 
decode vast numbers of existing Dolby Surround software. 
This new technology enables a discrete 5-channel 
playback with 2 front left and right channels, 1 center 
channel, and 2 surround left and right channels (instead of 
only 1 surround channel for conventional Pro Logic 
technology). Music and Game modes are also available for 
2-channel sources in addition to the Movie mode.

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Dolby Surround uses a 4-channel analog recording system 
to reproduce realistic and dynamic sound effects: 2 front 
left and right channels (stereo), a center channel for dialog 
(monaural), and a surround channel for special sound 
effects (monaural). The surround channel reproduces 
sound within a narrow frequency range.
Dolby Surround is widely used with nearly all video tapes 
and laser discs, and in many TV and cable broadcasts as 
well. The Dolby Pro Logic decoder built into this unit 
employs a digital signal processing system that 
automatically stabilizes the volume on each channel to 
enhance moving sound effects and directionality.

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DTS digital surround was developed to replace the analog 
soundtracks of movies with a 6-channel digital sound 
track, and is now rapidly gaining popularity in movie 
theaters around the world. DTS, Inc. has developed a 
home theater system so that you can enjoy the depth of 
sound and natural spatial representation of DTS digital 
surround in your home. This system produces practically 
distortion-free 6-channel sound (technically, left, right, 
and center channels, 2 surround channels, plus an LFE 
0.1-channel as a subwoofer, for a total of 5.1 channels). 
The unit incorporates a DTS-ES decoder that enables 6.1-
channel reproduction by adding the surround back channel 
to existing 5.1-channel format.

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Neo:6 decodes the conventional 2-channel sources for 6-
channel playback by the specific decoder. It enables 
playback with the full-range channels with higher 
separation just like digital discrete signal playback. Two 
modes are available: Music mode for playing music 
sources and Cinema mode for movies.

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Euphony is a revolutionary sound field reproduction 
system implemented with state-of-the-art sound 
technologies developed under the basic concept of 
enjoying beautiful sound. It can reproduce surround sound 
optimized without depending on the number of input 
channels, the number of speakers (two or more speakers) 
or the speaker’s dimensions. In addition, it features steady 
center localization. It also can reproduce the surround 
sound for the headphones with natural sound and “out-of-
head” localization so that the listener feels an expanded 
sound and will not tire, even when listening to music or a 
movie for long time.

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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/”.