Sony HT-6800DP Operating Instructions Manual page 30

How to select the surround back decoding mode
Yon can select the surround back decoding mode you want according to the input stream.
When you select "SB AUTO"
When Ihe input slream conlains lhe 6.1 channel decode llag a), Ihe appropriate decoder is applied to
decode the surround back signal.
Input stream Output channel Applied surround back decoder
Dolby Digital 5.1 5.1
Dolby Digital EXb) 6.1 Matrix decoder confornts to Dolby Digital EX
DTS 5.1 5.1 --
DTS-ES Matrix 6.1c) 6.1 DTS Matrix decoder
DTS-ES Discrete 6.]d) 6.1 DTS Discrete decoder
When you select "SB MTRX"
Dolby Digital EX is applied to decode the surround back signal regardless of the 6.1 channel decode
flag a) in the input stream. This decoder conl\_rms to Dolby Digital EX and limctions the same as the
decoders e) used in movie theaters.
Input stream Output channel Applied surround back decoder
Dolby Digital 5.1 6.1 Matrix decoder conforms to Dolby Digital EX
Dolby Digital EXb) 6.1 Matrix decoder confornts to Dolby Digital EX
DTS 5.1 6.1 Matrix decoder conforms to Dolby Digital EX
DTS-ES Matrix 6.1c) 6.1 Matrix decoder conforms to Dolby Digital EX
DTS-ES Discrete 6.1d) 6.1 Matrix decoder conforms to Dolby Digital EX
When you select "SB OFF"
Surround back decoding is not per_)rmed.
al 6.1 channel decode flag is the inl\)rmation recoaled in software like DVDs.
b) Dolby Digital DVD that inchldes a Surround EX flag. The Dolby Corporation _eb page can help you distinguish
Surround EX fihns.
c} Software encoded with a flag to denote it has both Surround EX and 5.1 channel signals.
dl 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} This decoder can be used for all 6.1 lk)rmats (Dolby Digital EX, DTS-ES Matrix 6.1, DTS-ES Discrete 6.1).
Note
There may bc It() sound lrnnt the surround back speaker in Dolby Digital EX mode. Some discs have no Dolhy Digital
EX flag even though the packages have Dolby Digital EX logos. In this case, select "SB MTRX'.
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