Sony STR-DA9000ES Operating Instructions Manual page 35

How to select the surround back decoding mode
You can select the surround back mode you want according to the input stream.
When you select "AUTO"
When the input stream contains the 6.1 channel decode flag
decode the surround back signal.
Input stream
Dolby Digital 5.1
b)
Dolby Digital EX
DTS 5.1
c)
DTS-ES Matrix 6.1
d)
DTS-ES Discrete 6.1
When you select "MATRIX"
Dolby Digital EX is applied to decode the surround back signal regardless of the 6.1 channel decode
a)
flag in the input stream. This decoder conforms to the Dolby Digital EX specifications functions the
f)
same as the decoders used in movie theaters.
Input stream
Dolby Digital 5.1
b)
Dolby Digital EX
DTS 5.1
c)
DTS-ES Matrix 6.1
d)
DTS-ES Discrete 6.1
When you select "OFF"
Surround back decoding is not performed.
The SB DEC indicator lights up when the surround back signal is actually decoded.
a)
6.1 channel decode flag is the information recorded in software like DVDs.
b)
Dolby Digital DVD software 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 Surround EX 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.
e)
When two surround back speakers are connected, the output channel will be 7.1 channel.
f)
This decoder can be used for all 6.1 formats (Dolby Digital EX, DTS-ES Matrix 6.1, DTS-ES Discrete 6.1).
Note
There may be no sound from the surround back speaker in Dolby Digital EX mode. Some discs have no Dolby Digital
EX flag even though the packages have Dolby Digital EX logos. In this case, select "MATRIX".
Output channel Applied surround back decoder
e)
5.1
e)
6.1
e)
5.1
e)
6.1
e)
6.1
Output channel Applied surround back decoder
e)
6.1
e)
6.1
e)
6.1
e)
6.1
e)
6.1
a)
, the appropriate decoder is applied to
—
Matrix decoder for Dolby Digital EX
—
DTS Matrix decoder
DTS Discrete decoder
Matrix decoder for Dolby Digital EX
Matrix decoder for Dolby Digital EX
Matrix decoder for Dolby Digital EX
Matrix decoder for Dolby Digital EX
Matrix decoder for Dolby Digital EX
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