Denon AVR-3805 Operations Instructions download pdf (Page 59)

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DTS 96/24

The sampling frequency, number of bits and number of channels used for recording of music, etc., in studios has

been increasing in recent years, and there are a growing number of high quality signal sources, including 96

kHz/24 bit 5.1-channel sources.

For example, there are high picture/sound quality DVD video sources with 96 kHz/24 bit stereo PCM audio tracks.

However, because the data rate for these audio tracks is extremely high, there are limits to recording them on

two channels only, and since the quality of the pictures must be restricted it is common to only include still

pictures.

In addition, 96 kHz/24 bit 5.1-channel surround is possible with DVD audio sources, but DVD audio players are

required to play them with this high quality.

DTS 96/24 is a multi-channel digital signal format developed by Digital Theater Systems Inc. in order to deal with

this situation.

Conventional surround formats used sampling frequencies of 48 or 44.1 kHz, so 20 kHz was about the maximum

playback signal frequency. With DTS 96/24, the sampling frequency is increased to 96 or 88.2 kHz to achieve a

wide frequency range of over 40 kHz.

In addition, DTS 96/24 has a resolution of 24 bits, resulting in the same frequency band and dynamic range as 96

kHz/24 bit PCM.

As with conventional DTS Surround, DTS 96/24 is compatible with a maximum of 5.1 channels, so sources

recorded using DTS 96/24 can be played in high sampling frequency, multiple channel audio with such normal

media as DVD videos and CDs.

Thus, with DTS 96/24, the same 96 kHz/24 bit multi-channel surround sound as with DVD-Audio can be achieved

while viewing DVD-Video images on a conventional DVD-Video player ( 1). Furthermore, with DTS 96/24

compatible CDs, 88.2 kHz/24 bit multi-channel surround can be achieved using normal CD/LD players ( 1).

Even with the high quality multi-channel signals, the recording time is the same as with conventional DTS

surround sources.

What’s more, DTS 96/24 is fully compatible with the conventional DTS surround format, so DTS 96/24 signal

sources can be played with a sampling frequency of 48 kHz or 44.1 kHz on conventional DTS or DTS-ES surround

decoders ( 2).

1 A DVD player with DTS digital output capabilities (for CD/LD players, a player with digital outputs for

conventional DTS CDs/LDs) and a disc recorded in DTS 96/24 are required.

2 The resolution is 24 or 20 bits, depending on the decoder.

HDCD

(High Definition Compatible Digital

)

HDCD is an encoding/decoding technology that greatly reduces the distortion that occurs upon digital recording

while maintaining compatibility with the conventional CD format, thus expanding the dynamic range and

achieving a high resolution.

Conventional CDs and HDCD compatible CDs are identified automatically to select the optimum digital

processing.

•

, HDCD

, High Definition Compatible Digital

and Microsoft

are either registered

trademarks or trademarks of Microsoft Corporation, Inc. in the United States and/or other

countries. HDCD system manufactured under license from Microsoft Corporation, Inc. This

product is covered by one or more of the following: In the USA: 5,479,168, 5,638,074, 5,640,161,

5,808,574, 5,838,274, 5,854,600, 5,864,311, 5,872,531, and in Australia: 669114. Other patents

pending.

DENON LINK (DENON Digital Link)

High-grade LPCM 24-bit, 96-kHz, 6-channel or 24-bit, 192-kHz, 2-channel digital input is possible when the AVR-

3805 is connected via a shielded twisted pair (STP) cable to a DENON DVD player that supports DENON Digital

Link, Since DENON Digital Link uses low-voltage differential signaling (LVDS), transfer capabilities of greater than

1.2 Gbps at a differential voltage of approximately 0.3Vpp are possible.

AL24 Plus (AL24 Processing Plus)

2 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 of DVD-Audio. 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.

Auto Setup/Room EQ Default settings

Auto Setup

Manual EQ

Setup

Room EQ

Setup

Direct Mode

Setup

Mic Input

Select

Power Amp

Assignment

This parameter is for optimizing the Room EQ with

which the audio signals are produced from the

speakers.

Set the Room EQ setting with All or Assign for

each surround mode.

Set the ON/OFF setting of Room EQ, in the case of

the surround mode is in Direct or Pure Direct.

Set this to switch the Mic Input jack for use for Mic

or V.Aux L-channel input jack.

Set this to switch the surround

back channel’s power amplifier

for use for zone2 or zone3.

SURROUND BACK

All Channel and Frequency=0 dB

All

OFF

Mic

1. Auto Setup/Room EQ

System setup items and default values (set upon shipment from the factory)

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Denon AVR-3805 Operations Instructions Page 59

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