Pioneer SC-LX81 - Manual (Page 11)

Simple Home Theater Guide 02
11
En
3 Set the operation selector switch to RCV, then press
AUTO/DIRECT (AUTO SURR/STREAM DIRECT) to
select ‘AUTO SURROUND’ and start playback of the
source.
1
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 35 for
information on different ways of listening to sources.
It is possible to check on the front panel display whether
or not multi-channel playback is being performed
properly.
When using a surround back speaker, 2D+PLIIx
MOVIE is displayed when playing Dolby Digital signals,
and
DTS+Neo:6 is displayed when playing DTS 5.1-
channel signals.
When not using a surround back speaker, DOLBY
DIGITAL is displayed when playing Dolby Digital signals.
For other details, see Listening modes with different input
signal formats on page 125. If the display does not
correspond to the input signal and listening mode, check
the connections and settings.
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 and
Full Band Phase Control
This receiver is equipped with the two types of functions
that correct phase distortion and group delay: Phase
Control and Full Band Phase Control. Activating Full
Band Phase Control is strongly recommended because it
also involves the effects of Phase Control. For details on
each of these two features, refer to the following
explanations.
Using Phase Control
During multichannel playback, LFE (Low-Frequency
Effects) signals as well as low-frequency signals in each
channel are assigned to the subwoofer or other the
subwoofer and the most appropriate speaker. At least in
theory, however, this type of processing involves a group
delay that varies with frequency, resulting in phase
distortion where the low-frequency sound is delayed or
muffled by the conflict with other channels. With the
Phase Control mode switched on, this receiver can
reproduce powerful bass sound without deteriorating the
quality of the original sound (see illustration below).
Phase Control OFF
• Rhythms blurred and difficult to hear
• Bass sound with loss of depth
• Sound of musical instruments with no reality
Phase Control ON
• Rhythms with crystal-like clarity
• Bass sound with no loss of depth
• Sound of musical instruments with superb reality
Note
1 • 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 35 if you need to do this) if you want multichannel surround
sound.
Front speaker
Subwoofer
Sound
source Sound muffled due
to a delay in time
Listening
position
Front speaker
Subwoofer
Sound
source Original sound
preserved with no
loss of clarity
Listening
position
SCLX81_71.book Page 11 Monday, June 2, 2008 6:16 PM