Mediaproxy reinforces Nielsen support with CBET watermarking for LogServer

Melbourne, Australia – 14 March 2023: Mediaproxy, the global standard for software-based IP compliance solutions, has further expanded its support for the audio watermarking technologies employed by global measurement and data analytics company Nielsen. Already a certified provider of decoding technology for Nielsen’s NAVE (Nielsen Audio Video Encoder) system, the Australian monitoring and logging specialist is now providing support for CBET (Critical Band Encoding Technology) layer 1 watermarks.

The latest versions of Mediaproxy’s LogServer compliance analysis monitor now includes officially certified encoding/decoding capabilities for CBET watermarking. CBET codes enable broadcasters to embed audio content into broadcast streams, which can then be passively detected by PPM (portable people meter) devices that gauge the exposure of test audiences to encoded material.

Introduced by Nielsen in 2015, CBET layer 1 watermarks were designed for audience research in the radio market, a sector Mediaproxy operates in parallel to its core broadcast television and streaming business. As well as being used by Nielsen in the US, CBET has also been deployed by the Numeris ratings measurement organization in Canada.

This is the latest stage in the ongoing business relationship between Nielsen and Mediaproxy, which is one of only a few compliance system manufacturers to receive official certification from the audience data specialist. Mediaproxy was already certified to decode Nielsen’s NAVE audio watermarking technology. This capability was incorporated into LogServer, enabling it to identify watermarks in the audio segment of compressed ATSC digital transport streams before and after transmission.


About Nielsen
Nielsen shapes the world’s media and content as a global leader in audience measurement, data and analytics. Through our understanding of people and their behaviors across all channels and platforms, we empower our clients with independent and actionable intelligence so they can connect and engage with their audiences—now and into the future. Nielsen operates around the world in more than 55 countries. Learn more at

About Mediaproxy
Since 2001, hundreds of engineers around the globe, rely daily on Mediaproxy’s unified software solutions for 24/7 monitoring, analysis, multiviewing and capture of live video from broadcast and OTT sources. With support for the latest formats and standards including 4K, HEVC, SMPTE 2022-6, SMPTE 2110, NDI, HLS, MPEG-DASH, SRT, Zixi, ATSC 3.0 and DVB-2, Mediaproxy consolidates analysis of on-air incidents, content search and ad verification via easy-to-use web browser and mobile interfaces. Compliant with current broadcast and IP streaming regulations, Mediaproxy supports all current industry standards for Closed Captioning, DVB Subtitling, SCTE-35, SCTE-104 and loudness. Whether on the ground or in the cloud, broadcast monitoring, analysis and compliance functions can be performed all in one place. For more information please visit:

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