43
GB
Ampl
ifier O
p
e
ration
s
(SUR BACK DECODING)
By decoding the surround back signal of DVD
software (etc.) recorded in Dolby Digital
Surround EX, DTS-ES Matrix, DTS-ES
Discrete 6.1, etc., format, you can enjoy the
surround sound intended by the filmmakers.
Select the surround back decoding mode using
“SB DEC” in the SUR menu (page 39).
Types of the surround back
decoding functions
x
SB AUTO
When the input stream contains the 6.1
channel decode flag
a)
, the appropriate
decoding is performed on the surround back
signal.
x
SB ON
To decode the surround back signal regardless
of the 6.1 channel decode flag
a)
, Dolby Digital
EX is applied when the output channel is 6.1
channel.
x
SB OFF
Surround back decoding is not performed.
a)
A 6.1 channel decode flag is information recorded
in software such as DVDs.
b)
A Dolby Digital DVD that includes a Surround EX
flag. The Dolby Corporation web page can help
you distinguish Surround EX films.
c)
Software encoded with a flag to denote it has both
DTS-ES Matrix and 5.1 channel signals.
d)
Software encoded with both 5.1 channel signals
and an extension stream designed for returning
those signals to 6.1 discrete channels. Discrete 6.1
channel signals are DVD specific signals not used
in movie theaters.
Notes
• There may be no sound from the surround back
speaker in Dolby Digital EX mode. Some discs
have no Dolby Digital Surround EX flag even
though the packages have Dolby Digital EX logos.
In this case, select “SB ON”.
• You can select the surround back decoding mode
only when A.F.D. mode is selected. However, this
function is canceled when Dolby Pro Logic IIx is
selected.
Using the surround back
decoding mode
Input stream
Output
channel
Surround back
decoding
Dolby Digital
5.1
5.1
—
Dolby Digital
Surround EX
b)
6.1
Matrix decoder that
conforms to Dolby
Digital EX
DTS 5.1
5.1
—
DTS-ES
Matrix 6.1
c)
6.1
DTS Matrix decoding
DTS-ES
Discrete 6.1
d)
6.1
DTS Discrete
decoding
Input stream
Output
channel
Surround back
decoding
Dolby Digital
5.1
6.1
Matrix decoder that
conforms to Dolby
Digital EX
Dolby Digital
Surround EX
b)
6.1
Matrix decoder that
conforms to Dolby
Digital EX
DTS 5.1
6.1
Matrix decoder that
conforms to Dolby
Digital EX
DTS-ES
Matrix 6.1
c)
6.1
Matrix decoder that
conforms to Dolby
Digital EX
DTS-ES
Discrete 6.1
d)
6.1
Matrix decoder that
conforms to Dolby
Digital EX
