Digital Audio Processor
Crestron
C2N-DAP8
56
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Digital Audio Processor: C2N-DAP8
Operations Guide - DOC. 8186
Surround Sound Decoder Digital Inputs and Outputs (continued)
SIGNAL TYPE
(I/O)
FUNCTION
Panorama
I
This setting applies to Dolby Pro Logic II Music mode.
According to Dolby Laboratories, it extends the front
stereo image to include the surround speakers for an
exciting wraparound effect with side-wall imaging.
Freeze
I
The auto-detect mode will be suspended for as long as
the Freeze input is high. This allows the C2N-DAP8 to be
put into a specific decoding mode
Store
I
By default, the C2N-DAP8 operates in auto-detect mode,
whereby the decoding mode is automatically selected
depending on the incoming signal stream and the selected
source. If the program selects an alternative decoding
mode for a source, a rising edge of the Store will save the
new decoding parameters for that type of signal stream.
Next
I
With each rising edge of Next, the DSP will cycle through
the different decoding modes: PCM, Dolby Digital 2ch,
Dolby Digital 2ch +Lt/Rt, Dolby Digital 5.1, Dolby Digital
5.1 EX, DTS 5.1, DTS ES Matrix, DTS ES Discrete.
ProLogic_Status
O
When high, indicates that Pro Logic decoding is active
Spdif_Present
O
When high, indicates that a valid SPDIF signal is present
on the last selected digital source when the C2N-DAP8 is
processing an analog signal.
Left_Active
through
LFE_Active
O
When high, indicates the presence of a signal coming in to
the decoder on the corresponding channel. (This does not
necessarily correspond directly to the physical outputs of
the C2N-DAP8.)
Surr_Active refers to the presence of a surround channel,
such as with a Pro Logic Encoded source, while
Back_Active indicates a 6.1 or 7.1 encoded signal that will
drive one or both of the back surround channels.
DTS_5.1,
DTS_Matrix
DTS_5.1_FB, ,
DTS_Matrix_FB
I
O
Control matrix generation of a rear surround channel (to
left back and right back speakers) for DTS Digital 5.1 and
DTS Digital ES Matrix encoded signals. Since the C2N-
DAP8 contains automatic modes to control this, the user
interface should use the _fb signals to indicate the current
es matrix mode.
DD_5.1, DD_EX
DD_5.1_FB>,
DD_EX_FB
I
O
Control matrix generation of a rear surround channel (to
Sbl/Sbr) for Dolby Digital 5.1 and Dolby Digital 5.1 EX
encoded signals. Since the C2N-DAP8 contains automatic
modes to control this, the user interface should use the
_fb signals to indicate the current Dolby Digital matrix
mode.
Surround Sound Decoder Analog Input and Output Signals
SIGNAL TYPE
(I/O)
FUNCTION
Decode_Mode
Decode_Mode_FB
I
O
The Decode_Mode input is reserved for future use.
The feedback signal indicates the current decoding
mode being used by the DSP, as follows:
Decode
Mode
Value
PCM
0
Dolby
1
DTS
2
Reserved
3
Analog
4
Reserved
5
(continued on next page)