Dolby Laboratories DP524 Instrukcja Użytkownika Pobierz pdf (Strona 41)

DP571 Dolby

E Encoder User’s Manual Setup Menus

7.2.3 Reversion Mode

This parameter specifies how the DP571 responds to an interruption in the external

metadata it is using. This settings is active only if the metadata source is set to

External.

• Last Used—Continues encoding using the last values set by the external

source. Most likely used for broadcast distribution.

• Preset—If metadata parameters are missing from the external-source stream,

they are filled in by the DP571 using the Rev Prog Config selected in

Metadata Params: Reversion Preset.

• Stop Encoding—Stops encoding and displays the error status on the front-

panel Error LED. Most likely used in postproduction.

• Adaptive—Behaves in the same way as Last Used if the metadata

disappears completely. Behaves in the same way as Preset if any metadata

parameters are missing.

7.2.4 Metadata Source

• Internal—Assigns internally generated metadata values based on each

program within a program configuration. These values can be modified.

• External—Uses external-source metadata that cannot be modified in the

DP571.

7.2.5 48 kHz Pull Down

• Disabled—This is the default setting; it is appropriate for most common VTRs.

• Enabled—This setting allows a DP571 encoder to be used with a 30 Hz VTR

operating at 29.97 Hz. When enabled, the LCD displays a < instead of the frame

rate.

Dolby E <

5.1+2 20bit

7.2.6 Frame Rate

The DP571 supports multiple frame rates: 29.97 Hz (NTSC), 25 Hz (PAL), 23.98 Hz,

24 Hz (P or PsF), and 30 Hz.

Note: All rates other than 25 and 29.97 Hz require the use of a Dolby DP579

Tri-Level Sync Interface.

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Dolby Laboratories DP524 Instrukcja Użytkownika Strona 41