Bedienungsanleitung Marantz PS17 (Seite 29 von 44) (Englisch)

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The same bypass (BP) mode as with conventional headphones

playback can also be selected.

The following surround sound effects can be selected while the Dolby

Headphone function is operating:

AUTO, DOLBY SURR., SRS, STEREO

OPERATION

1. Turn the VOLUME control knob counterclockwise to the lowest

setting.

2. Insert the plug on your headphones into the headphones jack.

3. Select the desired Dolby Headphone's room simulation pattern

by pressing the button on the unit's front panel.

Alternatively, it can be selected by pressing the Dolby H button

on the remote control unit.

Each time the button is pressed, the mode is selected in the

following sequence: BP ﬁ DH1 ﬁ DH2 ﬁ DH3 ﬁ BP.

4. Select the desired surround mode.

Press the surround mode button on the unit's front panel or on the

remote control unit.

AUTO, 2, SRS or STEREO can be selected.

5. Turn the VOLUME control knob clockwise to set the desired

volume level.

6. If distortion or other problems arise during LFE signal playback

due to inadequate reproduction of the bass which is the case with

some headphones, adjust by selecting -10dB or OFF for LFE

LEVEL in the SURROUND MODE item on the OSD menu.

Notes:

The Dolby Headphone function will not work when 96 kHz PCM digital

signals are input.

In this case, first supply the analog output signals of the DVD player

to the unit, and then activate the Dolby Headphone function.

The Dolby Headphone function will not work for 6-channel input

signals.

The Dolby Headphone function will not work when SOURCE DIRECT

has been selected while the headphones are being used.

Although this function does not require the use of a special pair of

headphones, its effect will differ somewhat depending on the type of

headphones used.

MAX

MIN

TEMP

PHONO

TREBLE

BASS

PHONES

INPUT SELECTOR

VOLUME

STANDBY

CDR/MD

TEMP

-DIRECT-

A/D

POEWER ON/OFF

AV AMPLIFIER PS-17SA

SOURCE

+-+

DVD

TAPE

VCR1

VCR2

DSS/

6CH INPUT PURE

NIGHT

6.1

AUTO

5chSTEREO

STEREO

SRS

LISTENING THROUGH HEAD-

PHONES

This unit features a "Dolby Headphone" function.

The Dolby Headphone is ideal for users who do not have the space to

install five speakers in their room and for users who want to enjoy

movies or music at high volume levels late at night but cannot do so.

They were developed to enable users to experience the 3-

dimensional acoustics of multi-channel or stereo channel sound while

wearing headphones.

EFFECTS OF DOLBY HEADPHONE

Usually when stereo sound is heard through headphones, the sound

is not localized somewhere in front of the listener's eyes as it does

with speakers: instead, all the sound is localized inside the listener's

head which feels unnatural to the listener.

When sound is heard using the Dolby Headphone function, however,

it is heard as if it is being reproduced from the speakers installed in

the room.

Normally, the sound delivered by the left speaker is heard in both the

listener's left and right ears, and the differences in level, time and

characteristics of the sound cause the listener to perceive a

directionality. Furthermore, in addition to the direct sound, the

indirect sound produced by reflection in the room also reaches the

listener's ears.

Listening to sound with headphones means that the listener hears the

left sound directly through his or her left ear only so that no sound

image is heard in front.

The Dolby Headphone provides virtual room simulation and the

resulting acoustic characteristics are overlaid onto, and incorporated

into, the left and right headphone signals. For instance, what

happens to the left-channel sound mentioned above is that its

reverberation components and components of the sound reflected

from the room are combined with the left and right speaker (channel)

sound and output to the left and right headphones. Since the listener

hears in both ears components with the same quality as when

listening to sound through speakers, he or she feels as if the sound

source were located in front.

This kind of processing necessitates a vast number of complex

operations but it has been achieved by improving the performance of

the DSP. Whereas stereotypical systems available to date had to

optimize the characteristics for each individual listener, the most

salient feature of the Dolby Headphone is that they remain essentially

unaffected by the listener or type of headphones (even if some small

variations exist due to differences in sensitivity and characteristics

balance).

The room simulation pattern that provides this effect can be selected

from the following three types.

DH1 : The size of a typical living room space is simulated.

DH2 : The expansiveness of a structure as large as a music hall is

simulated.

DH3 : A large space such as that found in a movie theater is

simulated.

Headphones plug

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