OmniTek OTR 1001, Руководство пользователя

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OmniTek OTR 1001 User Guide, v3.1 L-7
L.5 Dolby Metadata
Dolby data is delivered in bursts of ‘Dolby frames’. A significant proportion of each Dolby
frame comprises metadata detailing how the coded audio is to be handled and metering
information. The range of metadata associated with Dolby Digital differs from that for Dolby E.
This section introduces this metadata and describes how to view this data on an OTR 1001.
Note: In the main, a minimum of two frames are needed in order to determine data about Dolby
audio. As a result, the vast majority of the following data is only shown when the video sequence
is running. If the video sequence is paused, the data displayed reduces to showing CRC and
Frame Sync error counts.
Displaying Metadata
With the OTR 1001 configured for the appropriate input and the required stereo pair (as
described in Section L.1), the Status Overview display for this input includes a complete decode
of the embedded metadata.
Figure L-9: Sample Dolby E Metadata display
In outline, the steps used to display the Dolby metadata are therefore as follows.
Control Panel Mouse & Keyboard
To display the Dolby metadata:
1. Select the View window and call up the Status View.
2. Use the buttons on the Button Bar to select the Overview version of the Status display.
3. Set the tile on which the Status Overview is displayed to analyse the input on which the
Dolby data is being delivered.
4. Move the cursor down to the Dolby section of the Status Overview and use the [+] and [-]
symbols associated both with this section heading and those of the various sub-sections it
contains to display the parts of the decoded metadata that you require.
(For more detailed instructions, see Section E.6.)