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Dolby E Multichannel Distribution System User Manual DP572 Dolby E Decoder
4-7
4.2.1 Operating Mode
Figure 4-4
Operating Mode menu
Program Play
Enable: Allows the input to Main In to vary from the nominal 48 kHz sample rate.
Permits the decoder to operate with a VTR in Program Play mode. As the
sample rate varies from 48 kHz, the decoding latency is no longer exactly
one video frame. The P in the display below reflects that Program Play is
enabled.
Disable: The sample rate of the Main In input must be 48 kHz for the DP572 to decode.
48 kHz Pull Down
See 48kHz Pull Down on page 3-10.
PCM Bypass
Enable: Allows smooth transitions between decoded Dolby E and PCM audio.
Disable: Audio outputs are muted until a valid Dolby E stream is received at the
Main In input. This is useful when editing on a VTR while decoding with
the DP572.
Bypass Metadata
This feature is only relevant if PCM Bypass mode is enabled.
Disable: While the DP572 receives PCM input, no metadata is output.
Enable: While the DP572 receives PCM input, a default set of metadata parameters
more appropriate for two-channel audio is sent instead of the Dolby E
stream’s metadata.
DP572 Unit Setup
Operating Mode
Operating Mode
PCM Bypass
Operating Mode
48kHz Pull Down
Program Play
Disable
48kHz Pull Down
Disable
PCM Bypass
Disable
Program Play
Enable
48kHz Pull Down
Enable
PCM
Enable
Bypass
Operating Mode
Program Play
Enter
Enter
Enter
Enter
Esc
Esc
Esc
Esc
Operating Mode
LatencyBypass
Bypass Latency
1 Frame
Bypass Latency
Minimal
Enter Esc
Operating Mode
Bypass Metadata
Bypass Metadata
Disable
Bypass Metadata
Enable
Enter Esc
Dolby E P
5.1 + 2 20bit