SECURE RELIABLE TRANSPORT: Everything You Need to Know

Numerous protocols and technologies are available for use in the space of internet video streaming. However, SRT, or Secure Reliable Transport, might be the protocol of choice for media professionals not only because it is the future of live streaming but also because it allows highly scalable and completely automated captioning and audio dubbing. Thousands of businesses worldwide employ SRT for a variety of purposes and workflows that use gateways, CDNs, IP cameras, video encoders, and decoders. The major global technology providers, such as Microsoft, AWS, and Avid, already support SRT for different live-streaming use cases. 

But, what is SRT?

A security layer called SRT protocol guards media, including audio and video, and real-time communication while it's transferred over the internet. SRT also optimizes streaming performance over unpredictable networks. To accomplish this, the data is encrypted, making it inaccessible to everyone other than the intended recipient. 

So, how does the SRT protocol work?

SRT protocol was created to provide low-latency live video streaming and enhance your performance across inflexible Multiprotocol label switching (MPLS) networks. The Sender and the Receiver are the two main parts of SRT that operate together. The media stream is gathered by the Sender from your encoder and transmitted to the Receiver via the Internet. After that, the Receiver decrypts the stream and replays it for your audience.

SRT's ability to adjust in real-time to shifting network circumstances to keep your stream dependable and steady throughout makes it so beautiful. For instance, the SRT protocol will instantly reduce the bitrate to prevent missed frames and buffering if your Internet connection is interrupted.

Where is the SRT protocol used?

A wide range of entities and professionals make use of the SRT protocol. These can range from government and military applications to live streaming, video conferencing, broadcasting, surveillance, and e-learning.

Live Streaming

One of the most widely used applications of the SRT protocol is live streaming. It is frequently applied by media businesses to broadcast live events via the Internet, including conferences, concerts, e-sports, and other broadcasts. SRT is a great option for these applications as it provides the so-required low latency, high dependability, and unbeatable quality of the video being streamed.

Video Conferences

Services for video conferences also use the SRT protocol. SRT packets require less time to transmit, enabling high-quality audio and video streaming with low latency across extended distances. This makes it the perfect option for companies that need to have meetings virtually and stay in touch with staff members all across the world.

Surveillance Systems

Another application that notably benefits from employing the SRT protocol is surveillance systems. For security considerations, high-resolution images that are transmitted over great distances need to be dependable and have low latency. Security professionals may keep a real-time eye on their facilities with the use of this protocol.


Because SRT can deliver high-quality streaming audio and video information with low disruption and latency, e-learning has also become more and more dependent on it in recent times. Without having to worry about lag or delays, students may receive courses with crystal-clear audio quality from anywhere in the world making it an ideal accessibility solution for educational institutions.

Government and Military Agencies

SRT has proven to be a very useful tool for the government and military to establish secure communication links between geographically distant locations. This protocol can offer dependable connections between these two locations with little chance of signal loss or interception because of its short latency features.

Benefits of using SyncWords for your SRT live video streaming   

1. Support for high-quality video and audio

The SyncWords platform can seamlessly add real-time captions and audio translations to ultra-high-definition live streams with no compression, quality degradation, or distortions. We simply insert 608 captions and AI voice translations, then push the streams back to your production environment. In practice, this means your AV Teams get all control over the captioned and translated 4K live stream, and the end viewers benefit from a rich and engaging streaming experience. 

2. Compatibility with various live-streaming workflows

SyncWords works with a wide range of hardware, operating systems, and applications, therefore easily caters to your existing live streaming workflow. It is compatible with LiveU, TVU, and other video production software for seamless integration into live-streaming workflows. Additionally, should the need arise, we can work directly with your production team, ensuring a tailored approach to your project. 

3. Multiple captioning and dubbing capabilities 

As live broadcast production standards swiftly transition to SRT, SyncWords emerges as the premier solution for effortlessly enhancing the accessibility and inclusivity of your live streams. Seamlessly add professional human captions (CART) or live AI-powered captions to an SRT stream as CEA-608 data with our unified platform. Generate captions in real-time in all 608 supported languages, including English, Spanish, French, and others. Our proprietary Sync technology ensures that live captions appear on screen with no delay to the spoken words. But that's not all - SyncWords elevates the live streaming experience further by offering automated audio translations in over 50 languages and several regional accents. Powered by cutting-edge AI, this feature grants you unparalleled flexibility, with access to more than 900 natural-sounding AI voice options - both male and female. SyncWords provides a reliable, scalable, and entirely cloud-based alternative, ideal for broadcasters tired of bulky hardware and expensive encoders. And the cherry on top: transparent pricing with no hidden fees ensures you get exactly what you need without unpleasant surprises.

Live embedded 608 captions & AI-powered voice translations using SRT streaming protocol

4. Enhanced accuracy of live AI captioning and audio dubbing 

At the core of the SyncWords platform lies a fusion of best-of-breed ASR technologies and translation engines, ensuring great accuracy from the get-go. However, users can fine-tune accuracy levels even further. With unlimited options for default or custom ASR dictionaries and translation glossaries, you can tailor all industry-specific terminology, proper names, or brand identity.

5. Cost-effective solution for making SRT live streaming accessible and inclusive 

The SyncWords platform revolutionizes the captioning and audio dubbing workflows with AI-powered solutions offering a cost-effective alternative to traditional human captioners and live interpreters.  With SyncWords, you can effortlessly scale live streaming to multiple languages simultaneously, with no prior logistics, hardware/encoders, pre-scheduling, or even minor preparations involved! This versatility extends to captioning and translating concurrent live streams and programming in various languages. Of course, being this simple in use and practical application, it gives event producers a way to increase the volume of live video content that is accessible and inclusive to all audiences. Pushing or pulling SRT streams while generating perfectly synchronized automatic real-time captions has never been simpler.

6. Highly scalable live streaming

The SyncWords platform allows users to enjoy unlimited concurrent live streams featuring accurate real-time captions and voice translations in their preferred languages. Designed to streamline live captioning and translation for events, SyncWords seamlessly integrates into your existing live streaming workflow, supporting live channels in multiple languages.

Whether you're broadcasting sporting events in one set of languages and live news in another, SyncWords makes it effortless. Additionally, its intuitive interface and flexible features ensure hassle-free management of diverse language streams.

7. Completely cloud-based solution for real-time captioning and audio dubbing

The cloud-based infrastructure of the SyncWords platform eliminates the need for hardware or encoders, streamlining the live captioning and translation process. This results in a low-touch, exceptionally smooth, scalable, and budget-friendly solution. Also, no further system upgrades or additional equipment are required, for both real-time captioning and voice translations.  

8. 24/7 delivery of automatically captioned and dubbed live streams 

Not only SyncWords' live captions and AI voice translations are generated automatically for all chosen languages, but our services can be turned on and off for event-based workflows or left running 24/7 broadcasts.

9. Compliance with mandated accessibility regulations

SyncWords helps you comply with the mandated accessibility regulations by providing real-time captioning for hard-of-hearing audiences during live programming. Moreover, the platform allows its users to expand their audience reach by adding new languages, thereby increasing global viewership rates. Again, all automatic and hassle-free.


The SRT protocol is the future-driven approach to secure, high-quality, low-latency video. For applications requiring minimal latency and maximum reliability, such as live streaming and remote production, its open-source nature, sophisticated capabilities, and flexibility to adjust to different network conditions make it a desirable option.

Real-time CEA-608 captions & AI voice translations for broadcast TV

Compared to other widely used video streaming protocols like RTMP, WebRTC, and HLS, SRT offers distinct advantages in latency, video quality, and security. By understanding the fundamentals of the SRT protocol and its benefits, content producers and streaming service providers can choose the optimal solution to meet their specific needs.

As a proud member of the SRT Alliance, SyncWords fully embraces the SRT protocol, heralded as the future of live streaming. Our platform seamlessly integrates AI voice translations and 608 captions into SRT streams at scale. Whether it's automated live AI-powered or human captions, along with AI voice translations, SyncWords empowers users to enhance the accessibility and inclusivity of any live SRT stream effortlessly. Additionally, SyncWords supports workflows for both SRT callers and listeners.

Learn more about the SRT protocol as a streaming option on our website. 

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