
Using the surround back decoding mode (SB DEC)
By decoding the surround back signal of DVD software (etc.) recorded in Dolby Digital Surround EX,
Types of the surround back decoding functions
xSB OFF
Surround back decoding is not performed.
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 | 5.1e) | — |
5.1 |
|
|
|
|
|
Dolby Digital | 6.1e) | Matrix decoder that |
Surround EXb) |
| conforms to Dolby |
|
| Digital EX |
|
|
|
DTS 5.1 | 5.1e) | — |
6.1e) | DTS Matrix decoding | |
Matrix 6.1c) |
|
|
6.1e) | DTS Discrete | |
Discrete 6.1d) |
| decoding |
Dolby Digital | 7.1 | Matrix decoder that |
Surround EXb) |
| conforms to Dolby |
|
| Pro Logic IIx |
|
|
|
7.1 | DTS Matrix decoding | |
6.1c) |
|
|
7.1 | 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 | 6.1e) | Matrix decoder that |
5.1 |
| conforms to Dolby |
|
| Digital EX |
|
|
|
Dolby Digital | 6.1e) | Matrix decoder that |
Surround EXb) |
| conforms to Dolby |
|
| Digital EX |
|
|
|
DTS 5.1 | 6.1e) | Matrix decoder that |
|
| conforms to Dolby |
|
| Digital EX |
|
|
|
6.1e) | Matrix decoder that | |
Matrix 6.1c) |
| conforms to Dolby |
|
| Digital EX |
|
|
|
6.1e) | Matrix decoder that | |
Discrete 6.1d) |
| conforms to Dolby |
|
| Digital EX |
|
|
|
Dolby Digital | 7.1 | Matrix decoder that |
5.1 |
| conforms to Dolby |
|
| Pro Logic IIx |
|
|
|
Dolby Digital | 7.1 | Matrix decoder that |
Surround EXb) |
| conforms to Dolby |
|
| Pro Logic IIx |
|
|
|
DTS 5.1 | 7.1 | Matrix decoder that |
|
| conforms to Dolby |
|
| Digital EX |
|
|
|
7.1 | Matrix decoder that | |
Matrix 6.1c) |
| conforms to Dolby |
|
| Digital EX |
|
|
|
7.1 | Matrix decoder that | |
Discrete 6.1d) |
| conforms to Dolby |
Digital EX
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
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.
continued
43GB
Operations Amplifier