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Creating realistic
sound fields
Reproducing theatre ambience
In a movie theatre, many speakers are located on the walls to
reproduce impressive multi-channel sound, reaching you from all
directions.
With these many speakers, sound localization and sound
movement can be expressed.
Surround/DSP modes built in this receiver can create almost the
same Surround sound as you can feel in a real movie theatre.
Introducing the Surround modes
■ Dolby Digital*
Dolby Digital is a digital signal compression method, developed by
Dolby Laboratories, and enables multi-channel encoding and
decoding.
• When Dolby Digital signal is detected through the digital input,
the DOLBY D indicator lights up on the display.
Dolby Digital 5.1CH
Dolby Digital 5.1CH (DOLBY D) encoding method records and
digitally compresses the left front channel, right front channel,
center channel, left surround channel, right surround channel, and
LFE channel signals (total 6 channels, but the LFE channel is
counted as 0.1 channel. Therefore, called 5.1 channel).
Dolby Digital enables stereo surround sounds, and sets the cutoff
frequency of the surround treble at 20 kHz, compared to 7 kHz for
Dolby Pro Logic. As such, the sound movement and “being-there”
feeling are enhanced much more than Dolby Pro Logic.
Another digital surround encoding format introduced by Dolby
Laboratories is Dolby Digital EX, which adds the third surround
channels, called “surround back.”
Compared to the conventional Dolby Digital 5.1CH, these newly
added surround back channels can reproduce more detailed
movements behind you while viewing the video software. In
addition, surround sound localization will become more stable.
•You can use Virtual Surround Back (see page 22) when playing
back Dolby Digital Surround EX software. This function creates
the great surround effect from the behind as if you have
connected the surround back speaker. The VIRTUAL SB
indicator lights up on the display.
EN38-43RXF31S[B]f.p65 05.4.15, 14:5938