Intrasonics hardware and software is trusted by broadcasters worldwide.

Intrasonics offer a broadcast grade platform for content recognition.

Our broadcast customers use Intrasonics to measure audiences, deliver advertising insights and bring TV to life with interactive experiences.

Our hardware encoding supports industry standard SDI and AES3 in a professional and compact package available with web management, automatic failover, and dual PSUs.

Our scalable, multi platform software solutions can be integrated with modern broadcast workflows on premise, and in the cloud.

From play-along gameshow apps, to dedicated channel apps with response content like quizzes, promotions and loyalty rewards, Intrasonics has you covered.

Install a Real-time Encoder in your broadcast chain and your organisation can take advantage of the possibilities working with production companies to create interactive shows and upselling interactive spots to your advertisers.

Audio watermarks provide unambiguous identification of the content source. Our technology enables you to measure content popularity, track distributor leakage and licensee redistribution.

In this way your company can track and trace the (illegal) use of copyrighted material, maximising the value of your assets.


Our trusted real-time encoding hardware is installed in numerous broadcast rooms worldwide continuously encoding content.


Audio watermarking allows you to gather insights about your audiences viewing habits.


Maximise the value of your content: track distributor or licensee redistribution.


Our continuous encoding method enables perfectly timed second-screen interactivity and interactive advertising.

Real-Time Encoder FAQs

The Intrasonics Real-time Encoder (RTE) is a 19” rack-mounted appliance that can accommodate up to six encoding cards. This allows the broadcaster to encode up to six radio stations or TV channels with each unit (stereo or Dolby 5.1).

The RTE has a chassis or frame that contains a Linux-based encoding card manager system with a secure web interface, dual redundant PSUs and six slots for encoding cards.

Our Real Time Encoders (RTEs) can be configured to insert audio watermarks using a variety of schemes and watermarking strategies.

Our Heartbeat Engine, for example inserts a Channel identifier and date/time watermarks continuously 24×365 allowing for interactivity in apps and the browser to be scheduled and synchronised.

For live TV shows, our RTEs host a web interface that can be used to insert pre-defined individual audio triggers into the broadcast at the click of a button. This means the show’s directors can decide exactly what content they want their audience to see and exactly when they should see it in second screen apps.

The Intrasonics Real-Time Encoder comes in two flavours:

AV Encoder - configured to process both Audio and Video signals
Audio Encoder - configured for encoding Audio signal


  • Secure web interface for configuration & live control
  • Automatic, zero-interruption failover to direct pass-through
  • NTP server sync
  • SNMP compliant
  • Broadcast signal delay: 3ms

Video Inputs/Outputs: (AV Encoder only)

HD Serial Digital Video

  • SMPTE 292M (1.485Gbps)
  • 1080p at 23.98/24/25/29.97/30 frames per second;
  • 1080i at 50/59.94/60 fps
  • 720p at 50/59.94/60 fps

SD Serial Digital Video

  • SMPTE 259M (270Mbps)
  • PAL – 720 x 576 x 50i
  • NTSC – 720 x 486 x 59.94i

Audio Inputs/Outputs: (Audio Encoder only)

  • In: D15 socket wired to a pair of XLR sockets (female)
  • Out: D15 plug wired to a pair of XLR plugs (male)

Physical Details:
Size: 1U
Weight: 7kg
Mains supply voltage: 90-250VAC, 50-60Hz

Case Studies

Some innovative uses of our technology

What Our Customers Say...

Photo of Victoria Jaye

"We wanted our first live and synchronous companion experience to appeal to a mainstream audience and create a real event in the living room for families across the UK – the Antiques Roadshow mobile app does just that."

Photo of Jody Smith

"We’ve found a way of taking the hottest technology available right now and used it to create one of the most ridiculous apps you’ll find in the app store. We hope viewers will have a lot of fun tracking down all the audio triggers."

Photo of Francisco Sierra

"There’s massive potential to get closer to our viewers, and we’re delighted to be the first broadcaster in the world to be using this approach."

Have a project in mind ?  Contact us to discuss now.

Intrasonics Ltd

Bateman House
82-88 Hills Road
United Kingdom

Get In Touch

+44 (0)1223 927 070
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