Bluetooth LE Audio

Fundamental to Recent Advances

By: Himanshu Bhalla, Oren Haggai

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eText | 29 December 2025 | Edition Number 1

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This book unravels the technical intricacies and recent developments of Bluetooth® LE Audio technology. Covering everything from the radio frequency model and LC3 Codec to application profiles and use cases, it provides a deep dive into the new architecture that is transforming wireless audio. It offers clear insights into the transition from Bluetooth® Classic to LE Audio, emphasizing power efficiency, new features like Auracast? broadcast audio, and the innovative potential of LE Audio in various devices.

• Provides a detailed look into all aspects of LE Audio, covering radio frequency models, logical links, transport layers, and the advantages of the LC3 Codec

• Explains the shift from Classic Audio to LE Audio, highlighting the advantages in power savings, efficiency, and new use cases enabled by Bluetooth® LE technology

• Breaks down the architecture of the LE Audio stack, from the Core Controller to Host protocols, profiles, and application interfaces, making it easier for developers to navigate the standard

• Explores cutting-edge features like Auracast broadcast audio for broadcasting audio content and synchronized audio streaming for multi-device setups, offering insights into future innovations in audio technology

• Emphasizes the potential for significant power savings with LE Audio, especially for devices with smaller batteries, allowing for longer usage without frequent charging

This book is a must-read for developers and engineers seeking to master the latest advancements in Bluetooth technology.