
Bidding goodbye to subtitles? That is what Bluetooth Auracast can do. Paving way for cost-effective communication at scale, it enables a multi-stream audio broadcasting—ideal for many purposes.
Imagine a person sitting in an auditorium filled with thousands of people from all over the world, all listening to a single speaker. Here is the twist—the speaker is delivering the presentation simultaneously in multiple languages, and each member of the audience hears the speech in their native tongue. Sounds like magic, right? This is made possible by a new technology called Auracast.
Auracast is a digital expansion of Bluetooth functionality that enables a single device to broadcast multiple audio streams to unlimited listeners nearby. Each listener can tune in to their preferred audio stream or format. This simple yet revolutionary idea can potentially transform public gatherings, transportation, and urban environments.
Experts consider Auracast a game-changer. For example, it could let you share your music library with every headphone-wearer on a train, allowing fellow travellers to tune in if they wish. At the gym, it could replace TV subtitles with audio delivered directly to your headphones.
In today’s interconnected world, Auracast pushes communication boundaries by going beyond traditional broadcasting and enabling seamless, unlimited device connections. This cutting-edge technology has sparked excitement among tech enthusiasts and consumers alike.
Breaking down the technology
Auracast broadcast audio is a new Bluetooth capability. Bluetooth Auracast leverages the power of Bluetooth connectivity to provide a seamless broadcasting experience. Unlike conventional broadcasting methods, which are often limited by range or number of devices, it offers a bursty and perplexing solution that overcomes these constraints. One can effortlessly transmit audio, video, or other digital content to an unlimited audience within Bluetooth range, no matter if they are using smartphones, tablets, or other compatible devices.
The perplexing power to redefine broadcasting
May it be a television or smartphone, Auracast, in essence, is a nifty Bluetooth functionality that empowers it to beam out one or more audio streams to an unlimited array of audio receivers. They may be earbuds, speakers or such hearing aids. It has the ability to captivate and engage a large audience without the need for complex infrastructure or specialised equipment. With a simple tap or click, content creators can instantly connect with an unlimited number of listeners or viewers, making it an ideal tool.

The burstiness enables real-time, dynamic content delivery, opening up a world of possibilities for businesses, educators, entertainers, and more. Whether it is live event streaming, interactive presentations, or immersive storytelling, Bluetooth Auracast empowers creators to deliver their message with unprecedented reach and impact.
Exploring applications and benefits
High-end Samsung TVs like the Neo QLED 8K and 2023 microLED models support Auracast. Newer smartphones, including the Samsung Galaxy S23, Google Pixel 7, OnePlus 10T, and Galaxy Z Fold 4, are also compatible. The latest laptops and wireless earbuds from top brands are adopting Auracast as well.
Broadcast range depends on implementation; a single Auracast transmitter can cover up to 30,000 square feet, depending on transmit power and antenna design. Devices must support Bluetooth 5.2 or later and the public broadcast profile (PBP) within the LE Audio standard. Auracast is supported on Android 13 and 14 (no word on iOS), and by Qualcomm’s latest two generations of audio and mobile chips in various headphones and phones through year-end and into next year. TVs require built-in Auracast support.
By 2030, nearly 2.5 million public venues are expected to deploy Auracast transmitters globally.

Final thoughts
The versatility of Bluetooth Auracast extends across various industries and use cases. From retail and hospitality to education and entertainment, the technology offers a range of benefits, including enhanced engagement, seamless connectivity, and cost-effective broadcasting solutions. By embracing this technology, organisations and individuals can unlock new opportunities for audience interaction and brand communication.
As we look to the future, the impact of Bluetooth Auracast is poised to leave an indelible mark on the way we broadcast and interact with the world around us.