Using the surround back decoding mode

(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” on the SUR menu (page 39).

Types of the surround back decoding functions

xSB AUTO

When the input stream contains the 6.1 channel decode flaga), the appropriate decoding is performed on the surround back signal.

Input stream

Output

Surround back

 

channel

decoding

 

 

 

Dolby Digital

5.1

—

5.1

 

 

 

 

 

Dolby Digital

6.1

Matrix decoder that

Surround EXb)

 

conforms to Dolby

 

 

Digital EX

 

 

 

DTS 5.1

5.1

—

 

 

 

DTS-ES

6.1

DTS Matrix decoding

Matrix 6.1c)

 

 

DTS-ES

6.1

DTS Discrete

Discrete 6.1d)

 

decoding

xSB ON

To decode the surround back signal regardless of the 6.1 channel decode flaga), Dolby Digital EX is applied when the output channel is 6.1.

Input stream

Output

Surround back

 

channel

decoding

 

 

 

Dolby Digital

6.1

Matrix decoder that

5.1

 

conforms to Dolby

 

 

Digital EX

 

 

 

Dolby Digital

6.1

Matrix decoder that

Surround EXb)

 

conforms to Dolby

 

 

Digital EX

 

 

 

DTS 5.1

6.1

Matrix decoder that

 

 

conforms to Dolby

 

 

Digital EX

 

 

 

DTS-ES

6.1

Matrix decoder that

Matrix 6.1c)

 

conforms to Dolby

 

 

Digital EX

 

 

 

DTS-ES

6.1

Matrix decoder that

Discrete 6.1d)

 

conforms to Dolby

Digital EX

xSB 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.

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