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APT SureStream Technology is a revolutionary innovation from APT that enables broadcasters to use inexpensive IP links and still maintain professional broadcast-grade audio quality and reliability.  It delivers the audio quality and reliability you expect from a T1/E1 link at a fraction of the associated cost.

APT SureStream Technology also offers the added benefit of «Always-On Redundancy». With APT SureStream technology, you can save thousands on your audio transport bills and still offer your listeners the highest quality sound.

At a basic level, SureStream is based on Redundant Streaming technology but SureStream offers much more than just duplicate streams.

SureStream employs a number of proprietary techniques that optimize the delivery of all streams throughout the network and an advanced resequencing engine that produces one perfectly seamless, reconstructed stream from the multiple streams received. Perfect audio from an imperfect network!

SureStream works well on a single IP link for impromptu remotes or outside broadcasts but, for mission-critical studio transmitter links and audio contribution or distribution, we recommend utilizing two links from different providers to ensure optimum performance rivalling the a traditional T1 service.



  • Save Money: You can save up to 90% on the cost of your audio transport bills by replacing your synchronous or managed IP Links with the public internet. With DSL charges typically costing from 5-10% that of a synchronous link, the potential savings are so significant that it is possible to achieve a return on your investment in under 4 months!
  • Deliver High Quality Audio: The audio quality of your station should not be sacrificed for the sake of cost savings. SureStream enables you to maintain consistently high audio quality with no drop-outs and no jitter.
  • Keep Delay Consistent : For professional audio delivery, it is not acceptable for the signal delay to vary or to drift. The ability to maintain the delay at a consistent level is particularly useful for remote broadcast applications and local content insertion.
  • Relax! SureStream offers you the same level of uptime and reliability as a ‘five nines’ Telco service. You are protected not only from drop-outs and glitches but also from a complete loss of connection!