Grass-valley iTX Output Server 2 v.2.5 Uživatelský manuál stáhnout pdf (Strana 22)

Setting Up Output Server 2

Configuring the Nielsen Watermark

The Nielsen watermark is an inaudible cue tone in the audio stream of the channel output

signal. In the USA and Canada, the Nielsen watermark is detected by devices that provide

information for television audience measuring.

Both Nielsen watermarking version 2 (N2) and version 4 (NW) are supported. Either format

can be inser

ted or both can be inserted simultaneously into the data stream. This is

configured from the Watermark tab on the Output Server 2 Configuration panel.

Note: Unlike N2 watermarking, NW processing does not support the

overwriting of audio codes that are present in the stream before the

watermarking process begins. Instead, the watermark engine leaves

space for a second (and possibly a third) Final Distributor Service ID in the

program band.

To configure Nielsen Watermarking on audio output:

1Open the C

onfiguration panel and click the Watermark tab, as described in Accessing

the Output Server 2 User Interface, on page 16.

2Check Enable Watermarking On Audio Output.

3In the Audio Output Group field, enter the output group to which you want to apply

the watermark.

4In the P

rocess Type field, select one of the following:

•N2

•NW

•Both

5In Ser

vice ID field, enter the Nielsen channel ID number.

6In the Check D

igit field, enter the two-letter Nielsen check digit.

7In the Dist

ribution Type field, select one of the following:

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 38 39

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Grass-valley iTX Output Server 2 v.2.5 Uživatelský manuál Strana 22