Dolby Laboratories CP650 Installation Manual download pdf (Page 167)

Dolby

Model CP650 Installation Manual Format Definitions

D-7

Format 81 (Cat. No. 790 required)

Bitstream Dolby Digital Surround EX

Short name: Fmt 80 w/Surr. EX

Audio Description: The input signal is a digital bitstream into the Option Card I/O

input. The signal is Dolby Digital (consumer) decoded, and the resultant L, C, R, and

SW signals are sent to the output. The Ls and Rs channels are sent to the Surround

EX matrix decoder to yield the channels Ls, Rs and Bs (which is copied into the Bsl

and Bsr channels). The out-of-phase information is discarded. The audio for all

channels output via the Option

Card I/O connector.

For PCM or bitstream material with fewer than two discrete surround channels, this

format is identical to Format 80.

Format 85 (Cat. Nos. 790/791 or Cat. No. 778 Required)

Bitstream PCM 8-Channel Input, 10-Channel Output

Short name: 5-Ch. Screen

Audio Description: The input signals are S/PDIF formatted bitstreams into the

Option Card I/O inputs. S/PDIF input 1 carries Left and Right Channel audio data and

is output on the Left and Right channel analog outputs. S/PDIF input 2 carries center

and Subwoofer channel audio data is output on the Center and Subwoofer channel

analog outputs. S/PDIF input 3 carries Left Surround and Right Surround channel

audio data. Left Surround audio is output on the Left Surround and Back Surround

Left analog outputs. The Right Surround audio is output on the Right Surround and

Back Surround Right analog outputs. There are two additional output channels

labeled Left Extra and Right Extra. These are input on S/PDIF input 4 and output on

the Left and Right mid-frequency analog outputs. In order to use this format, the

CP650 must be configured for 2-Way crossover operation, and Le/Re mode must be

enabled.

Format 86 (Cat. Nos. 790/791 or Cat. No. 778 Required)

Bitstream PCM 8-Channel Input, 10-Channel Output

Short name: 5-Channel Screen + EX

Audio Description: The input signals are S/PDIF formatted bitstreams into the

Option Card I/O inputs. S/PDIF input 1 carries Left and Right channel audio data and

is output on the Left and Right channel analog outputs. S/PDIF input 2 carries Center

and Subwoofer channel audio data and is output to the Center and Subwoofer channel

analog outputs. S/PDIF input 3 carries Left Surround and Right Surround channel

audio data. These channels are Dolby Digital Surround EX decoded. The Left

Surround audio is output on the Left Surround analog output. Back Surround Left

audio is output on the Back Surround Left analog outputs. Right Surround audio is

output on the Right Surround analog output. Back Surround Right audio is output on

the Back Surround Right analog outputs. In this format, there are two extra channels,

labeled Left Extra and Right Extra. These two channels are input on S/PDIF input 4

and output on left and right mid-frequency analog outputs. In order to use this format,

the CP650 must first be configured for 2-Way crossover operation, and Le/Re mode

must be enabled.

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Dolby Laboratories CP650 Installation Manual Page 167

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