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Figure: NAVE Watermarking
The Nielsen Audio Video Encoder (NAVE) is a system capable of inserting Nielsen Media Research
proprietary NAVE source identification watermarking directly into the audio portion of compressed
digital ATSC transport streams prior to broadcast. NAVE devices can simultaneously insert
watermarking data on multiple independent digital television programs being broadcast whether
they are standard definition (SDTV) or high definition (HDTV). The watermark is capable of identifying
the Provider Content (PC), the network the content was distributed (NT), and the final distributor (FD),
say in the case of local broadcast station or cable channel. The watermarks include a timestamp so if
the content is viewed time shifted (VOD) within a reasonable time frame that usage data is also
captured.
If any station's NAVE encoder is interrupted, the meter device installed in Nielsen sample premises
collects and stores passive signatures for all non-encoded programming viewed. These signatures
are downloaded each night to Nielsen's operations center. To identify viewing, the passive signatures
collected from the meter device in the premises are matched against the signatures in the library.
The feature allows you to define the watermarks to be accepted and the faults/recoveries to occur by
configuring the watermark's creation time and the number of good watermarks that should be
received per period.
AG-7.2.B1-092414 • Restricted - customer use only
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