12 DSP SURROUND SIMULATION

• The AVR-2805 is equipped with a high performance DSP (Digital Signal Processor) which uses digital signal

processing to synthetically recreate the sound field. One of ten preset surround modes can be selected

according to the program source and the parameters can be adjusted according to the conditions in the

ENGLISH

DSP surround simulation

To operate the surround mode and surround parameters from the remote control unit.

listening room to achieve a more realistic, powerful sound. These surround modes can also be used for

program sources not recorded in Dolby Surround Pro Logic, Dolby Digital or DTS.

Surround modes and their features

 

 

Select this to achieve an atmosphere like that of a movie theater with a large screen. In this mode,

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WIDE SCREEN

all signal sources are played in the 7.1-channel mode, including Dolby Pro Logic and Dolby Digital

5.1-channel sources. Effects simulating the multi surround speakers of movie theaters are added

 

 

 

 

to the surround channels.

 

 

 

2

SUPER STADIUM

Select this when watching baseball or soccer programs to achieve a sound as if you were actually

at the stadium. This mode provides the longest reverberation signals.

 

 

 

 

 

3

ROCK ARENA

Use this mode to achieve the feeling of a live concert in an arena with reflected sounds coming

from all directions.

 

 

 

 

 

4

JAZZ CLUB

This mode creates the sound field of a live house with a low ceiling and hard walls. This mode

gives jazz a very vivid realism.

 

 

 

 

 

5

CLASSIC

Select this for the sound of a concert hall rich in reverberations.

CONCERT

 

 

 

 

 

6

MONO MOVIE

Select this when watching monaural movies for a greater sense of expansion.

(NOTE 1)

 

 

 

 

 

7

VIDEO GAME

Use this to enjoy video game sources.

 

 

 

8

MATRIX

Select this to emphasize the sense of expansion for music sources recorded in stereo. Signals

consisting of the difference component of the input signals (the component that provides the

 

 

sense of expansion) processed for delay are output from the surround channel.

 

 

 

9

VIRTUAL

Select this mode to enjoy a virtual sound field, produced from the front 2-channel speakers.

 

 

 

 

 

The front left channel signals are output to the surround and surround back signal left channels,

10

5CH/7CH STEREO

the front right channel signals are output to the surround and surround back signal right channels,

and the in-phase component of the left and right channels is output to the center channel. Use

 

 

 

 

this mode to enjoy stereo sound.

 

 

 

Depending on the program source being played, the effect may not be very noticeable.

In this case, try other surround modes, without worrying about their names, to create a sound field suited to your tastes.

NOTE 1: When playing sources recorded in monaural, the sound will be one-sided if signals are only input to one channel (left or right), so input signals to both channels. If you have a source component with only one audio output (monophonic camcorder, etc.) obtain a “Y” adaptor cable to split the mono output to two outputs, and connect to the L and R inputs.

Personal Memory Plus

This set is equipped with a personal memorize function that automatically memorizes the surround modes and input modes selected for the input different sources. When the input source is switched, the modes set for that source last time it was used are automatically recalled.

The surround parameters, tone control settings and playback level balance for the different output channels are memorized for each surround mode.

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Select the surround mode for

each input channel.

(Remote control unit)

The surround mode switches in the following order each time the DSP SIMULATION button is pressed:

WIDE SCREEN SUPER STADIUM ROCK ARENA JAZZ CLUB

VIRTUAL MATRIX VIDEO GAME MONO MOVIE CLASSIC CONCERT

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Press the surround patameter button.

Display the surround parameter screen.

The screen for the selected surround mode appears.

(Remote control unit)

*Surr Parameter

ROOM: Medium

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Set the parameters.

(Remote control unit)(Remote control unit)

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When the surround parameters are set using

the buttons on the main unit, stop operating

buttons after completing the settings. The settings are automatically finalized and the normal display reappears after several seconds.

When the settings are made using the buttons on the remote control unit, press the “ENTER” or “SURROUND PARAMETER” button to finish.

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2, 4 3

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NOTES:

The surround speaker setting can also be changed with the SPEAKER button on the remote control unit.

When “Default” is selected and the CURSOR left button is pressed, “CINEMA EQ.” and “D.COMP.” are automatically turned off, “ROOM SIZE” is set to “medium”, “EFFECT LEVEL” to “10”, “DELAY TIME” to “30ms” and “LFE” to “0dB”.

The “ROOM SIZE” expresses the expansion effect for the different surround modes in terms of the size of the sound field, not the actual size of the listening room.

When playing PCM digital signals or analog signals in the DOLBY PRO LOGIC II, DOLBY PRO LOGIC IIx, DTS NEO:6 modes and the input signal switches to a digital signal encoded in Dolby Digital, the Dolby surround mode switches automatically. When the input signal switches to a DTS signal, the mode automatically switches to DTS surround.

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