Cobalt Digital Inc 9934-AUD-PRO Product Manual page 56

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Table 3-2 9934-AUD-PRO Function Menu List — continued
Our final processing step in this example is setting DSP A to also provide a Dolby 5.1 encoded pair. When a Dolby encoder
is checked (enabled), the Dolby Digital Encoder and Dolby Digital Encoder Metadata sub-tabs appear, which allow
setup of the Dolby encoded pair.
The first step in setting up an encoder is selecting the Encoder Format (which selects between Dolby Digital and Dolby
Digital Plus formats). In this example, Dolby Digital is used, with the default data rate being used. The status displays below
the setup drop-downs show data rate actually being used, as well as encode success.
Note: Although the Metadata Source drop-down allows choices other than encoder internal metadata, only internal
metadata is currently supported.
With the encoder format and data rate basics set up above, now the bitstream mode, metadata, and other particulars
related to the selected mode can be set. In this example, standard 5.1 is selected (3/2L) with a dialnorm of -24 (conforming
to ATSC A/85). The encoded stream is now ready to be placed on an audio bus channel pair for eventual output from the
card.
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9934-AUD-PRO Function Menu List and Descriptions
(continued)
9934-AUD-PRO PRODUCT MANUAL 9934-AUDPRO-OM (V1.1)