Dolby Laboratories DP524 Command $42: Set Compression mode

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Command $42: Set Compression mode
$FB $20 $42 data $FD
Where data is as follows:
B7 B6 B5 B4 B3 B2 B1 B0
000000C1C0
C0 and C1 are defined as follows:
C1 C0 Comment
0 0 Custom mode, no digital dialog normalization
0 1 Custom mode, digital dialog normalization
1 0 Line Out Mode
1 1 RF mode
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