JVC RX-7020VBK manual Creating Realistic Sound Fields

Creating Realistic Sound Fields

■DAP (Digital Acoustic Processor) modes

DAP modes have been designed to create important acoustic surround elements.

The sound heard in a live club, dance club, hall or pavilion consists of direct sound and indirect sound—early reflections and reflections from behind. Direct sounds reach the listener directly without any reflection. On the other hand, indirect sounds are delayed by the distances of the ceiling and walls (see the diagram below).

These indirect sounds are important elements of the acoustic surround effects. The DAP mode can reproduce a realistic sound field by adding these indirect sounds.

DAP modes can be used when the front and rear speakers are connected to this receiver (without respect to the center speaker connection: no sound comes out of the center speaker even if it is connected).

The following DAP modes are provided with this receiver:

LIVE CLUB : Gives the feeling of a live music club with a low ceiling.

DANCE CLUB : Gives a throbbing bass beat.

HALL	: Gives clear vocal and the feeling of a concert
	hall.
PAVILION	: Gives the spacious feeling of a pavilion with a
	high ceiling.

These DAP modes can be used to add the acoustic surround effects while reproducing 2 channel stereo software—either analog or digital except Dolby Digital and DTS Digital Surround—and can give you a real “being there” feeling.

•When one of the DAP modes is selected, the DSP indicator lights up on the display.

Creating sound field

Reflections from behind

Early reflections

Direct sounds

■All Channel Stereo

This mode can reproduce a larger stereo sound field using all the connected (and activated) speakers.

All Channel Stereo can be used when the front and rear speakers are connected to this receiver without respect to the center speaker connection.

If the center speaker is connected and activated, the same phase of the front left and right signals are output through the center speaker.

All Channel Stereo can be used while reproducing 2 channel stereo software, either analog or digital except Dolby Digital and DTS Digital Surround.

•When All Channel Stereo is selected, the DSP indicator lights up on the display.

All Channel Stereo reproduction

Sound reproduced from All Channel Stereo

DVD MULTI Playback Mode

This receiver provides the DVD MULTI playback mode for reproducing the analog discrete 5.1 channel output mode of the DVD player or other equipment.

You can adjust speaker output levels while playing back a video software such as a DVD using the analog discrete 5.1 channel output mode.

•For connecting analog discrete output jacks, see page 8.

•For details on the DVD MULTI playback mode, see page 30.

Note:

When you select “DVD MULTI” as the source to play, Surround mode is canceled, and the SURROUND ON/OFF and SURROUND MODE buttons do not work.

Available Surround modes for each input signal								◯: Possible / ×: Impossible
Mode	SURROUND	DOLBY	DTS	PLII	PLII	LIVE	DANCE	HALL	PAVILION	ALL CH
Signals	OFF (stereo)	DIGITAL	SURROUND	MOVIE	MUSIC	CLUB	CLUB			STEREO
Dolby Digital	◯	◯	×	×	×	×	×	×	×	×
(Multichannel)
Dolby Digital	◯	×	×	◯	◯	×	×	×	×	×
(2 channel)
DTS Digital
Surround	◯	×	◯	×	×	×	×	×	×	×
(Multichannel)
DTS Digital
Surround	◯	×	×	◯	◯	×	×	×	×	×
(2 channel)
Linear PCM	◯	×	×	◯	◯	◯	◯	◯	◯	◯
Analog	◯	×	×	◯	◯	◯	◯	◯	◯	◯

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