Handleiding Denon AVR-3311 (pagina 110 van 120) (Engels)

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Explanation of terms

Adobe RGB color, Adobe YCC601 color

Like x.v.Color, each of these color spaces deﬁnes

a palette of available colors that is larger than the

traditional RGB color model.

AL24 Processing Plus

AL24 Processing for All Channels

DENON has further developed its proprietary AL24

Processing, an analog waveform reproduction

technology, to support the 192 kHz sampling

frequency. AL24 Processing Plus, thoroughly

suppresses quantization noise associated with D/A

conversion of LPCM signals to reproduce the low-

level signals with optimum clarity that will bring out

all the delicate nuances of the music.

Equipped foe not only front left and right channels

but also for the surround left and right, center and

subwoofer channels.

Audyssey Dynamic Surround Expansion™

(A-DSX)

Realistic reproduction of sound relies on the

ability of audio systems to match human hearing

performance. Three key requirements are: (1)

frequency response, (2) dynamic range, and (3)

accurate spatial reproduction. The requirements for

frequency response have already been surpassed

with sampling rates that exceed human hearing.

The dynamic range limits of human perception

have also been met with current digital audio

systems operating capable of signal to noise ratios

that approach 120 dB. Accurate spatial sound

rendering, however, has not yet reached the limits

of perception as human perception relies on the

combination of sounds arriving from many more

directions than what 5.1-channel surround sound

systems provide. Audyssey DSX technology was

developed to overcome the spatial sound rendering

limitations faced by 5.1-channel surround sound

formats.

The ITU 5.1-channel channel standard recommends

three front loudspeakers and two rear loudspeakers.

The Left (L) and Right (R) front loudspeakers should

be placed at ±30° relative to the central listening

position. The Center (C) loudspeaker should be at

0° and the surround loudspeakers (SL, SR) should

be placed between 100° and 120°. All loudspeakers

must be equidistant from the center listening

position or compensated with time delay if that

is not possible. A separate low-frequency effects

(LFE) channel is used to reproduce additional bass

content from the subwoofer.

There are certain things that 5.1-channel surround

sound systems do well compared to 2-channel

stereo. For example, it is possible to move sounds

across the front seamlessly. It is also possible to

create ambience behind the listener. But 5.1 channel

surround systems do not provide enough channels

from which to render the required reﬂ ected

sound components for a seamless and enveloping

soundstage. Unfortunately, the additional two back

surround channels in 7.1-channel systems are not

in the right place to provide a signiﬁcant perceptual

improvement.

Adding more channels to a surround system is

not for special effects. Accurate spatial sound

reproduction requires rendering of directional

sound cues and non-directional ambient cues.

Reﬂ ections arriving after the direct sound play a

critical role in the perception of soundstage width

and depth. To have the most impact, additional

surround channels should be used to control the

direction, time of arrival, and frequency response

of the reﬂ ected sound to render an expanded

soundstage that reproduces sound with better

localization and envelopment than what 5.1-channel

systems provide.

Research in the perception of auditory source width

has shown that there are strong preferences in the

direction of reﬂ ected sound and the perception of

soundstage width and spaciousness. The single

most important direction of side-wall reﬂ ections

is ±60°. DSX provides a pair of Wide channels

(LW and RW) at ±60° with appropriate frequency

response and perceptual processing to match the

requirements of human hearing. In fact, the Wide

channels are much more critical in the presentation

of a realistic soundstage than then Back Surround

channels found in traditional 7.1-channel systems. A

more enveloping 7.1-channel system is one in which

Wide speakers are used instead of Back Surround

speakers. Adding surround channels behind the

listener has a very small impact compared to the

increase in envelopment and soundstage width that

the front wide channels will provide.

After side reﬂ ections, the next most important

acoustical and perceptual cues come from reﬂ

ections above the front stage. DSX provides a pair

of Height channels (LH and RH) at a ±45° azimuth

angle and elevated to a 45° angle in the median

plane.

In addition to creating new Wide and Height

channels, DSX also provides Surround Processing

to enhance the envelopment of the Surround and

Back Surround channels (if present). DSX Surround

Processing processes the standard surround signals

in the time and frequency domains to improve the

perceived sense of envelopment and blending with

the other speakers in the surround system.

Audyssey Dynamic Surround Expansion is a scalable

system that can adapt to the practical needs of the

user. The ﬁrst level of surround stage enhancement

comes from adding the Wide channels. The second

level comes from adding the Height channels. If it

is practical to have both Wides and Heights then

the surround performance will be further enhanced.

DSX automatically reconﬁgures its processing to

optimize surround rendering over any number of

available speakers beyond that of 5.1-channel.

Audyssey Dynamic EQ

Audyssey Dynamic EQ solves the problem of

deteriorating sound quality as volume is decreased

by taking into account human perception and room

acoustics. Audyssey Dynamic EQ works in tandem

with Audyssey MultEQ XT to provide well-balanced

sound for every listener at any volume level.

Audyssey Dynamic Volume

Audyssey Dynamic Volume solves the problem of

large variations in volume level between television

programs, commercials, and between the soft and

loud passages of movies. Audyssey Dynamic EQ

is integrated into Dynamic Volume so that as the

playback volume is adjusted automatically, the

perceived bass response, tonal balance, surround

impression, and dialog clarity remain the same.

Audyssey MultEQ

Audyssey MultEQ XT is a room equalization

solution that calibrates any audio system so that

it can achieve optimum performance for every

listener in a large listening area. Based on several

room measurements, MultEQ XT calculates an

equalization solution that corrects for both time

and frequency response problems in the listening

area and also performs a fully automated surround

system setup.

Auto Lip Sync

If you connect the receiver to a TV that supports the

Auto Lip Sync function, it can automatically correct

delay between the audio and video.

Deep Color

This technology allows expression of more number

of colors than the conventional 8 bits and can

reproduce colors close to natural ones without color

streak.

DLNA

DLNA and DLNA CERTIFIED are trademarks and/

or service marks of Digital Living Network Alliance.

Some contents may not be compatible with other

DLNA CERTIFIED™ products.

Dolby Digital

Dolby Digital is a multi-channel digital signal format

developed by Dolby Laboratories.

A total of 5.1 channels are played: 3 front channels

(“FL”, “FR” and “C”), 2 surround channels

(“SL” and “SR”) and the “LFE” channel for low

frequencies.

Because of this, there is no crosstalk between

channels and a realistic sound ﬁeld with a “three-

dimensional” feeling (sense of distance, movement

and positioning) is achieved.

A realistic, powerful sense of presence is achieved

when playing movie sources in AV rooms as well.

Dolby Digital EX

Dolby Digital EX is a 6.1-channel surround format

proposed by Dolby Laboratories that allows users

to enjoy in their homes the “DOLBY DIGITAL

SURROUND EX” audio format jointly developed by

Dolby Laboratories and Lucas Films.

The 6.1 channels of sound, including surround back

channels, provide improved sound positioning and

expression of space.

Dolby Digital Plus

Dolby Digital Plus is an improved Dolby Digital signal

format that is compatible with up to 7.1 channels

of discrete digital sound and also improves sound

quality thanks to extra data bit rate performance.

It is upwardly compatible with conventional Dolby

Digital, so it offers greater ﬂexibility in response to

the source signal and the conditions of the playback

equipment.

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