As live production workflows move to IP, managing latency and synchronisation across complex, fast-moving environments has become essential to delivering seamless audience experiences.
The live events and live production industries are rapidly transitioning toward IP-based workflows. From stadium productions and concert tours to corporate events and hybrid broadcasts, the demand for scalable, flexible, and interoperable systems continues to grow. Alongside those opportunities comes a more complicated challenge: maintaining synchronisation and minimising latency across increasingly distributed AV infrastructures.
Terms such as “zero latency” are often used in marketing conversations surrounding live production technologies, but the reality inside a production environment is more nuanced. Every stage in the signal chain introduces some degree of delay, whether through encoding, decoding, network transport, processing, scaling, or display synchronisation. In many cases, vendors may only measure a single portion of the workflow when quoting latency figures, rather than the complete end-to-end path. For live productions, what matters is not eliminating latency entirely, but managing it consistently and predictably across the entire system.
Why synchronisation matters
A live audience is extremely sensitive to synchronisation issues. Even slight mismatches between audio and video, or between displays positioned around a venue, can negatively impact the viewing experience. The larger and more distributed the production becomes, the more critical timing discipline becomes.
This is one reason why open standards and IP-based synchronisation technologies have become increasingly important in modern live production workflows. SMPTE ST 2110 and technologies such as Precision Time Protocol (PTP) allow devices across a network to align to a common timing reference with remarkable accuracy. Another open standard, IPMX, builds on these same synchronisation principles, extending time-aligned AV-over-IP workflows into Pro AV environments.
From SDI to AV-over-IP standards
In traditional SDI environments, synchronisation was relatively straightforward because systems were typically centralised and tightly controlled. IP workflows introduce greater flexibility, but they also introduce new variables. Signals can travel across different switches, processing nodes, and network segments. Temporary event deployments may involve shared infrastructure, rapidly assembled systems, and equipment from multiple vendors.
As a result, synchronisation is no longer just a broadcast engineering concern. It has become a network-wide operational requirement.
SMPTE ST 2110 and IPMX have emerged as important open standards for professional live production because they separate video, audio, and ancillary data into individual streams while maintaining precise synchronisation across networked environments, ST 2110 and IPMX support highly synchronised workflows that are particularly valuable in large-scale productions where timing accuracy is essential.
For high-end live productions, this level of precision offers significant advantages.
Videowalls, replay systems, multiviewers, graphics engines, and audio consoles can remain tightly synchronised across the network. Operators gain greater flexibility while maintaining confidence in timing consistency.
At the same time, deploying ST 2110 successfully requires careful planning. Network architecture, switch configuration, bandwidth management, and timing domains all play critical roles. Achieving reliable synchronisation is not simply a matter of connecting devices to an IP network. The infrastructure itself must be engineered with timing and resiliency in mind.
Where NDI fits
NDI takes a different approach. Its accessibility and ease of deployment have made it extremely popular in live AV, corporate production, education, and agile broadcast environments. NDI allows organisations to deploy agile IP workflows without the complexity often associated with full broadcast-grade infrastructures.
In many live event scenarios, NDI provides a practical balance between quality, flexibility, and deployment speed. It enables rapid setup, efficient resource sharing, and simplified integration across mixed environments.
However, the tradeoff is that NDI workflows are generally less deterministic than ST 2110 environments designed around tightly controlled timing architectures. For many productions, this is entirely acceptable. The appropriate choice depends on the operational priorities of the event.
The flexibility of IPMX
IPMX is also expanding the conversation around AV-over-IP by providing greater flexibility across different production environments. While traditional ST 2110 deployments are often associated with high-bandwidth, uncompressed workflows in timing-critical broadcast environments, IPMX is designed to support both these high-performance use, timing-critical workflows and more bandwidth-conscious Pro-AV deployments. This allows production teams to maintain synchronised, time-aligned workflows while adapting network performance, compression requirements, and infrastructure complexity to the specific needs of each event. As live production environments continue to converge across broadcast and pro-AV, this flexibility is becoming increasingly important.
Building flexible hybrid workflows
Large-scale broadcast productions with demanding synchronisation requirements may favour ST 2110. Smaller or highly agile productions may prioritise the flexibility and ease of deployment offered by NDI. Increasingly, organisations are also building hybrid workflows that combine multiple technologies.
IPMX offers benefits of both ST 2110 and NDI, combining interoperability and synchronisation with the flexibility needed across a wide range of production environments. Interoperability between standards and protocols is becoming one of the most important considerations in live production design. Open standards help reduce vendor lock-in and allow production teams to adapt workflows based on the specific requirements of each event.
The future of live IP production
As IP adoption continues to accelerate, the industry is moving toward workflows that are more flexible, scalable, and interoperable than ever before. But flexibility cannot come at the expense of synchronisation and reliability.
Ultimately, successful live production depends on engineering systems where latency is controlled, synchronisation is maintained, and every part of the workflow operates together predictably. Open standards such as ST 2110 and IPMX, alongside technologies like NDI, are helping shape that future, enabling production teams to build workflows that are both adaptable and dependable in increasingly demanding live environments.
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