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 flaga), the appropriate decoder is applied to decode the surround back signal.
Input stream | Output channel | Applied surround back decoder |
Dolby Digital 5.1 | 5.1e) | — |
Dolby Digital EXb) | 6.1e) | Matrix decoder conforms to Dolby Digital EX |
DTS 5.1 | 5.1e) | — |
6.1e) | DTS Matrix decoder | |
6.1e) | DTS Discrete decoder | |
Dolby Digital EXb) | 7.1 | Matrix decoder conforms to Dolby Pro Logic IIx |
7.1 | DTS Matrix decoder | |
7.1 | DTS Discrete decoder |
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 and Dolby Digital EX or Dolby Pro Logic IIx is applied when the output channel is 7.1.
Input stream | Output channel | Applied surround back decoder |
Dolby Digital 5.1 | 6.1e) | Matrix decoder conforms to Dolby Digital EX |
Dolby Digital EXb) | 6.1e) | Matrix decoder conforms to Dolby Digital EX |
DTS 5.1 | 6.1e) | Matrix decoder conforms to Dolby Digital EX |
6.1e) | Matrix decoder conforms to Dolby Digital EX | |
6.1e) | Matrix decoder conforms to Dolby Digital EX | |
Dolby Digital 5.1 | 7.1 | Matrix decoder conforms to Dolby Pro Logic IIx |
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Dolby Digital EXb) | 7.1 | Matrix decoder conforms to Dolby Pro Logic IIx |
DTS 5.1 | 7.1 | Matrix decoder conforms to Dolby Digital EX |
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7.1 | Matrix decoder conforms to Dolby Digital EX | |
7.1 | Matrix decoder conforms to Dolby Digital EX |
Surround back decoding is not performed.
a)6.1 channel decode flag is the information recorded in software like DVDs.
b)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 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 and the surround back speakers selection parameter in the SPEAKER SET UP menu is set to “DUAL”, the output channel will be 7.1 channels.
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 “ON”.