The NWE-3GA is the ideal solution for inserting Nielsen® Watermarks into the audio for television programming. The timestamp structured watermarks make use of the SID (Source Identifier), which is a serial number used by Nielsen® and the television industry to uniquely identify program content, to ensure proper crediting of viewing.
The NWE-3GA accepts an SDI input (3 Gb/s, 1.5 Gb/s, or 270 Mb/s) and 4 AES3 digital audio inputs. It applies the watermark to up to 16 PCM audio channels selected from the 16 embedded and 8 AES channels. Embedded audio signals that are watermarked are re-embedded into the same location in the SDI output. AES audio signals that are watermarked are re-encoded into the same AES output.
The module can be configured to support a variety of audio configurations, from a single stereo pair up to two 5.1 surround groups plus two stereo pairs. The NWE-3GA includes a video frame delay to ensure proper audio-video synchronization. The companion rear connector module provides relay bypass of the video and AES signals, allowing the NWE-3GA module to be inserted or extracted without interrupting the program path.