JVC LVT0865-004A DAP Digital Acoustic Processor modes, All Channel Stereo, Creating sound field

7 DAP (Digital Acoustic Processor) modes 7 All Channel Stereo

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.

The following DAP modes are provided with this system.

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.

All Channel Stereo (ALL CH ST.) mode can reproduce a larger stereo sound field using all the connected (and activated) speakers.

All Channel Stereo can be used while reproducing 2 channel stereo software, either analog or Linear PCM.

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

All Channel Stereo reproduction

All channel stereo

Normal stereo sound

These DAP modes can be used to add the acoustic surround effects while reproducing 2 channel stereo software, either analog or Linear PCM, 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 window.

Creating sound field

Reflections from behind

Early reflections

Direct sounds

7The signal indicators on the display window Light up to indicate the incoming signals.

L C R

LFE

LS S RS

L:Lights up when the left channel signal comes in.

C:Lights up when the center channel signal comes in.

R:Lights up when the right channel signal comes in. LFE: Lights up when the LFE channel signal comes in. LS: Lights up when the left surround channel signal

comes in.

RS: Lights up when the right surround channel signal comes in.

S:Lights up when the monaural rear channel signal or 2 channel Dolby Surround signal comes in.

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			ST.
Dolby Digital	‡	‡	⋅	⋅	⋅	⋅	⋅	⋅	⋅	⋅
(Multichannel)
Dolby Digital	‡	⋅	⋅	‡	‡	⋅	⋅	⋅	⋅	⋅
(2 channel)
DTS Digital		⋅		⋅	⋅	⋅	⋅	⋅	⋅	⋅
Surround	‡		‡
(Multichannel)
DTS Digital		⋅	⋅			⋅	⋅	⋅	⋅	⋅
Surround	‡			‡	‡
(2 channel)
Analog
(AUX/FM/AM)	‡	⋅	⋅	‡	‡	‡	‡	‡	‡	‡
or
Linear PCM

38