Problems when using the auto mcacc setup, Playing a source better sound using phase control, 5 minute guide 02 – Pioneer VSX-LX50 User Manual

Page 10: Playing a source, Better sound using phase control

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5 minute guide

02

10

En

Problems when using the Auto MCACC Setup

If the room environment is not optimal for the Auto
MCACC Setup (too much background noise, echo off the
walls, obstacles blocking the speakers from the
microphone) the final settings may be incorrect. Check
for household appliances (air conditioner, fridge, fan,
etc.), that may be affecting the environment and switch
them off if necessary. If there are any instructions
showing in the front panel display, please follow them.

• Some older TVs may interfere with the operation of

the microphone. If this seems to be happening,
switch off the TV when doing the Auto MCACC Setup.

Playing a source

Here are the basic instructions for playing a source (such
as a DVD disc) with your home theater system.

1

Switch on your system components and receiver.

Start by switching on the playback component (for

example a DVD player), your TV

1

and subwoofer (if you

have one), then the receiver (press

RECEIVER

).

• Make sure the setup mic is disconnected.

2

Select the input source you want to play.

You can use the input source buttons on the remote

control,

INPUT SELECT

, or the front panel controls.

2

3

Press

S.DIRECT

(

STREAM DIRECT

) to select ‘AUTO

SURROUND’ and start playback of the source.

3

If you’re playing a Dolby Digital or DTS surround sound
DVD disc, you should hear surround sound. If you are
playing a stereo source, you will only hear sound from the
front left/right speakers in the default listening mode.

• See also

Listening to your system

on page 27 for

information on different ways of listening to sources.

4

Use the volume control to adjust the volume level.

Turn down the volume of your TV so that all sound is
coming from the speakers connected to this receiver.

Better sound using Phase Control

This receiver’s Phase Control feature uses phase
correction measures to make sure your sound source
arrives at the listening position in phase, preventing
unwanted distortion and/or coloring of the sound (see
illustration below).

Phase Control technology provides coherent sound

reproduction through the use of phase matching

4

for an

optimal sound image at your listening position. The
default setting is on and we recommend leaving Phase
Control switched on for all sound sources.

Press PHASE (

PHASE CONTROL

) to switch on phase

correction.

The

PHASE CONTROL

indicator on the front panel lights.

Note

1 Make sure that the TV’s video input is set to this receiver. (For example, if you connected this receiver to the

VIDEO 1

jacks on your TV, make sure that

the

VIDEO 1

input is now selected.)

2 If you need to manually switch the input signal type press

SIGNAL SEL

(page 30).

3 • You may need to check the digital audio output settings on your DVD player or digital satellite receiver. It should be set to output Dolby Digital, DTS
and 88.2 kHz / 96 kHz PCM (2 channel) audio, and if there is an MPEG audio option, set this to convert the MPEG audio to PCM.

• Depending on your DVD player or source discs, you may only get digital 2 channel stereo and analog sound. In this case, the receiver must be set to a

multichannel listening mode (see

Listening in surround sound

on page 27 if you need to do this) if you want multichannel surround sound.

ANALOG

ATT

SLEEP

S.RETRIEVER

RECEIVER

SOURCE

SYSTEM OFF

INPUT

SELECT

TV

DVR 1

TV CTRL

iPod

RECEIVER

TUNER

HDMI 1

DVD

CD

HDMI 2

CD-R/TAPE

DVR 2

USB

TV CONTROL

SHIFT

VOL

STATUS

SIGNAL SEL

THX

ADV.SURR

SB ch

INPUT

SELECT

TV CH

MPX

A

B

C

D

E

EON

AUDIO

DISP

SUBTITLE

MULTI OPE

STANDARD

PHASE

S.DIRECT

MCACC

REC

MUTE

TV VOL

REC STOP JUKEBOX

HDD

CH

CH

DVD

GUIDE

STEREO/

F.S.SURR

PHOTO

4 Phase matching is a very important factor in achieving proper sound reproduction. If two waveforms are ‘in phase’, they crest and trough together,
resulting in increased amplitude, clarity and presence of the sound signal. If a crest of a wave meets a trough (as shown in the upper section of the diagram
above) then the sound will be ‘out of phase’ and an unreliable sound image will be produced.

?

Sound
source

Sound
source

Listening

position

Listening

position

Front speaker

Subwoofer

Front speaker

Subwoofer

PHASE CONTROL ON

PHASE CONTROL OFF

SHIFT

THX

ADV.SURR

MULTI OPE

STANDARD

PHASE

S.DIRECT

MCACC

RECEIVER

VSX-LX50.book 10 ページ 2007年4月12日 木曜日 午後5時3分

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