Low Latency Transport

Because live content needs to be live


With Zixi’s ultra-low latency video delivery over all IP, content providers can truly replicate the TV experience while leveraging a more economical transport method.

Zixi provides the ability to transport live MPEG-2, H.264/AVC, H.265/HEVC, and JPEG 2000 video at ultra-low latency, making the internet viable for global content transport across distances, ideal for live sports and event streaming, gaming and gambling, or real-time video communication.

Zixi’s protocols and applications for real-time delivery do not compromise visual quality, while ensuring that latency is maintained and synchronized across devices, network locations and conditions so that content providers can deliver video in real-time to the end user with confidence.

What Makes Zixi's Low Latency Delivery Unique

The Lowest Latency Currently in Production Use

The Zixi protocol provides the lowest latency in the industry for delivering broadcast-quality compressed video. Ultra-low worldwide transport latencies are practical and fully supported by the Zixi Software-Defined Video Platform.

Zixi transcoding and HLS packaging supports CMAF and the community recommended chunked-based-encoding-and-transfer-approach supported by CDNs and video players.  Using this approach, sub-three second delivery latency is achievable.

Customizable Latency with Optimal Tradeoffs

In a communication system there is a 3-way tradeoff between latency, bitrate and resiliency. With the Zixi protocol the tradeoffs are optimized, and the latency and overhead are customizable, enabling transport of broadcast-quality video according to your unique needs.

For robust streams that are not time sensitive, or for example if content providers wish playout to be in sync with broadcast or satellite, users can set latency to a few seconds, or greater.

Unmatched Resiliency - 99.999%+ Reliability

Zixi’s protocol uses a combination of adaptive FEC, ARQ, network bonding, congestion avoidance and hitless failover to algorithmically reconstruct data down the supply chain in potentially less than a round-trip. Zixi ultra-low latency delivery is backed up with a unique, patented hitless failover technique that creates one coherent stream out of multiple stream fragments with a DNA sequence alignment algorithm.

Three-second latency setting with Zixi is very resilient to and from any location globally 90%+ percent of the time depending on architecture and workflow. Zixi latency can be adjusted to provide additional protection at problematic edge-point locations with extreme packet errors percentage, without interruption of the live stream.


Zixi has been measured
to recover from up to
40%+ packet loss