Infineon engineer Jeffrey demonstrates the AIROC CYW5551x Wi-Fi 6/6E + Bluetooth 5.4 combo as an audio bridge between today’s Bluetooth Classic devices and next-generation Bluetooth LE Audio endpoints. A phone streams standard A2DP audio into a CYW5551x-based node, which decodes the Classic stream and re-encodes it as LE Audio using the LC3 codec, then broadcasts it simultaneously to multiple Auracast receivers. Under the hood, the family integrates an 802.11ax 1×1 tri-band Wi-Fi radio and a 192 MHz Arm Cortex-M33, making it suitable for embedded audio, IoT and connected consumer products that need robust wireless and local processing on a single platform https://www.infineon.com/products/wireless-connectivity/airoc-wi-fi-plus-bluetooth-combos/wi-fi-6-6e
—
HDMI® Technology is the foundation for the worldwide ecosystem of HDMI-connected devices; integrated with displays, set-top boxes, laptops, audio video receivers and other product types. Because of this global usage, manufacturers, resellers, integrators and consumers must be assured that their HDMI® products work seamlessly together and deliver the best possible performance by sourcing products from licensed HDMI Adopters or authorized resellers. For HDMI Cables, consumers can look for the official HDMI® Cable Certification Labels on packaging. Innovation continues with the latest HDMI 2.2 Specification that supports higher 96Gbps bandwidth and next-gen HDMI Fixed Rate Link technology to provide optimal audio and video for a wide range of device applications. Higher resolutions and refresh rates are supported, including up to 12K@120 and 16K@60. Additionally, more high-quality options are supported, including uncompressed full chroma formats such as 8K@60/4:4:4 and 4K@240/4:4:4 at 10-bit and 12-bit color.
—
The demo focuses on Bluetooth LE Audio’s broadcast capabilities, branded by the Bluetooth SIG as Auracast, where a single transmitter can stream synchronized audio to many independent receivers. Thanks to LC3, LE Audio maintains intelligible sound quality at significantly lower bitrates than Classic, improving robustness in noisy RF environments and reducing power consumption in hearables and wearables Jeffrey walks through how this makes assistive listening more flexible: instead of pairing to each listener, audio from a phone, set-top box or media processor can simply be advertised and subscribed to by compatible earbuds, hearing aids or public receivers in the same ecosystem
In the conversation you also hear how Infineon addresses interference in dense spaces by deploying multiple LE Audio relay nodes across a room, each rebroadcasting the Auracast stream so attendees always remain within good RF coverage. Combined with CYW5551x’s high transmit power and long-range LE sensitivity, this makes it feasible to scale assistive listening or multi-listener audio to conference halls, lecture theatres, museums or transport hubs without complex pairing workflows or dedicated cabling infrastructure
Recorded at Embedded World North America 2025 in Anaheim, this booth demo situates the CYW5551x within Infineon’s broader AIROC wireless roadmap, where the same connectivity platform can be hosted by Linux or RTOS systems and reused across headsets, TVs, soundbars, conferencing bars and industrial HMIs For product designers, the key takeaway is that CYW5551x is not just a Wi-Fi/Bluetooth combo, but a migration path from legacy Bluetooth Classic audio to LE Audio and Auracast, enabling next-generation hearing-assistance and shared-audio experiences with a consistent connectivity and software stack suitable for long-lived embedded engineering
I’m publishing about 90+ videos from Embedded World North America 2025, I upload about 4 videos per day at 5AM/11AM/5PM/11PM CET/EST. Join https://www.youtube.com/charbax/join for Early Access to all 90 videos (once they’re all queued in next few days) Check out all my Embedded World North America videos in my Embedded World playlist here: https://www.youtube.com/playlist?list=PL7xXqJFxvYvjgUpdNMBkGzEWU6YVxR8Ga
This video was filmed using the DJI Pocket 3 ($669 at https://amzn.to/4aMpKIC using the dual wireless DJI Mic 2 microphones with the DJI lapel microphone https://amzn.to/3XIj3l8 ), watch all my DJI Pocket 3 videos here https://www.youtube.com/playlist?list=PL7xXqJFxvYvhDlWIAxm_pR9dp7ArSkhKK
Click the “Super Thanks” button below the video to send a highlighted comment under the video! Brands I film are welcome to support my work in this way 😁
Check out my video with Daylight Computer about their revolutionary Sunlight Readable Transflective LCD Display for Healthy Learning: https://www.youtube.com/watch?v=U98RuxkFDYY



