Since it was first introduced to the world, Bluetooth® technology has become increasingly relevant to people’s everyday lives. From untethered audio devices to enhanced audio experiences, Bluetooth technology has brought many changes to audio, revolutionizing the way we use media and experience the world.

LE Audio not only optimizes Bluetooth audio performance and adds support for hearing aids, but it also introduces another important feature, Auracast™ broadcast audio. This new feature will enhance the way people interact with the world and help create new life-changing audio experiences.

Following the pace of Bluetooth audio innovation, major manufacturers have also applied the most advanced and cutting-edge technology into their products. As a mobile Internet company focused on in-house high-end smartphone R&D, Xiaomi explores quality audio experiences with a commitment to bring technological magic into people’s lives.

Recently, I talked with Liao Xiaoqing, senior R&D manager of Xiaomi Communications Co., Ltd. about the products developed by Xiaomi using LE Audio and the possibilities ahead for LE Audio and AuracastTM broadcast audio.

Q&A with Liao Xiaoqing from Xiaomi

What are your considerations for adopting Bluetooth LE Audio in Xiaomi products?

As a new global standard for Bluetooth® audio technology, LE Audio will usher in a new era of audio phenomenon in the next twenty years, just like Bluetooth Classic audio did. LE Audio will also create innovative opportunities for Bluetooth products, especially in the true wireless stereo (TWS) market. In addition to Multi-Stream Audio and the Low Complexity Communication Codec (LC3), Xiaomi products also adopt another LE Audio technology, the Isochronous Channel (ISOC) architecture, which offers flexible and diverse support for the link transport layer. Another critical technology is Auracast™ broadcast audio. Introduced this year by the Bluetooth Special Interest Group (SIG,) Auracast™ broadcast audio enables new audio experiences with global interoperability to enhance how users connect with each other and the world around them.

What existing true wireless stereo (TWS) market challenges does LE Audio help Xiaomi products address?

LE Audio helps resolve issues related to the development of TWS technology, audio codecs, sound quality, power consumption, and full-link codec latency as well as compatibility and interoperability between various TWS technologies.

“LE Audio can improve the compatibility and interoperability of current TWS technology.”

Bluetooth® products available on the market today often face the dilemma between choosing sound quality or power consumption when using high-quality audio codecs like aptX and LDAC. If the user wants better sound quality, the play time of both the source and the sink will see a significant decline. LC3, the audio codec with high sound quality and low power consumption used by LE Audio, is created to solve this specific problem. The reduced power consumption provides more room for future TWS headphone innovation as lower power consumption allows a smaller battery capacity, thus reducing the size of the wireless headphone itself.

LE Audio can improve the compatibility and interoperability of current TWS technology, allowing consumers to purchase TWS products without needing to consider factors such as lack of platform support. Xiaomi is committed to the interconnectivity and interoperability between all LE Audio-enabled devices in the Xiaomi eco-chain for interoperability and all LE Audio qualified devices on the market to provide consumers with seamless and stable Bluetooth technology experiences.

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Auracast™ Broadcast Audio

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For what other product lines do you plan to use Bluetooth LE Audio functions and features to improve future consumer experiences?

Xiaomi has launched its second-generation LE Audio products: Redmi K50, K50 Pro, Note 11T Pro, and Xiaomi 12 Pro Dimensity, with the Redmi Buds 4 Pro earbuds. In addition to audio and video, these products also support LE Audio and LC3 for high-quality voice call experiences and include significant upgrades, in terms of latency, to challenge the industry’s ultra-low latency record.

Xiaomi has been involved in driving the innovation and development of LE Audio. We are eager to implement more new LE Audio features into devices to offer consumers incredible audio experiences like never before. Xiaomi believes that LE Audio, including Multi-Stream Audio and Auracast™ broadcast audio, has a promising future for smartphones, smart TVs, smart speakers, Bluetooth headsets, wearables, and other devices.

Why is the standardization of Bluetooth audio transmission so important? What is the importance of Bluetooth LE Audio to the wireless audio market?

Standardizing Bluetooth® audio transmission is important to chip makers, manufacturers, and end users because it lays the developmental foundation for the entire Bluetooth audio ecosystem to scale. From the perspective of chip makers and manufacturers, standardization means interoperability and the seamless collaboration between devices, making individuals part of a larger, comprehensive ecosystem. As for consumers, standardization provides more choices free from the constraints of customized, proprietary technologies from individual manufacturers.

LE Audio provides a unified standard solution for implementing TWS technology, and consumers are free to use any LE Audio-enabled devices of their choice without needing to worry about platform incompatibility. LC3 codecs can be uniformly used for voice calls and audio/video applications, eliminating the need for developers to consider memory usage and the adaptability of different codecs while end users will not need to compare the advantages and disadvantages. Additionally, LE Audio has introduced Auracast™ broadcast audio, a standardized solution for broadcast audio that provides new use cases for audio sharing in personal and public spaces. Users can receive audio broadcasts directly from public broadcast systems through their own Bluetooth devices or hearing aids that support Auracast™ broadcast audio.

How will the launch of AuracastTM broadcast audio advance the development of Bluetooth audio solutions?

As Zeng Xuezhong, senior vice president of Xiaomi and president of smartphone department, said when Auracast™ broadcast audio launched in June, “The launch of Auracast™ broadcast audio will upgrade personal wireless listening to shared wireless listening. We will fully explore the potential of wireless audio to deliver more value and better experiences to our users.”

“The standardization of Auracast™ broadcast audio will lead to more audio sharing capabilities across the audio sources and sink devices.”

Auracast™ broadcast audio offers new use cases and audio experiences that will significantly improve people’s lives. For example, the new features will drive device upgrades, enhance audio quality in public places like airports and theaters, and help improve user experience by enabling seamless audio sharing. Whether it be sharing a personal audio broadcast with family and friends, translating audio into your native language at a meeting, or ensuring that people with hearing loss receive timely airport announcements, the possibilities Auracast™ broadcast audio will bring to users are endless.

The standardization of Auracast™ broadcast audio will lead to more audio sharing capabilities across the audio sources and sink devices we support, like phones, tablets, watches, headphones, and speakers. 

FEATURED INNOVATION

Auracast™ Broadcast Audio

Auracast™ broadcast audio will deliver life-changing audio experiences that will enhance the way you engage with others and the world around you.

LEARN MORE

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