SPARK Microsystems' UWB Technology Achieves Bit-Perfect Wireless Audio Delivery

SPARK Microsystems has released third-party analysis demonstrating that their ultra-wideband technology achieves bit-perfect wireless audio delivery, marking a significant advancement in wireless audio technology. The research presented at AES Show 2024 NY reveals that SPARK's UWB technology delivers audio indistinguishable from wired transmission while maintaining ultra-low latency of under 7 milliseconds. Independent audio engineering consultant Jeff Anderson conducted the comparative study evaluating signal quality across various audio systems using Fast Fourier Transform measurements with wired equipment as the reference standard.

The findings show SPARK's UWB technology exhibits bit-perfect signal fidelity and pristine wireless audio quality without corruption. In contrast, Bluetooth codecs including LDAC, aptX HD, aptX LL, and SBC demonstrated elevated noise floors, noticeable distortion particularly at higher frequencies, and significantly higher latency ranging from 30 to 200 milliseconds. This performance gap highlights the substantial improvement SPARK's technology brings to wireless audio transmission quality and responsiveness.

The implications of this breakthrough extend throughout the audio industry, with high-end audio brands such as Sonus Faber and Focal already adopting SPARK's UWB technology in their products. Rejean Bedel, Groupe Marketing Manager at Focal, described this advancement as marking a turning point for high-end audio, enabling seamless wire-free products without sound quality compromise. Beyond superior audio quality, SPARK's UWB system supports bi-directional audio transport, allowing for an additional bit-perfect low-latency uncompressed audio back channel that enhances technology versatility.

Frederic Nabki, Co-founder and CTO of SPARK Microsystems, emphasized that for decades the industry accepted compromises in sound quality, latency, and energy efficiency to make wireless audio possible. SPARK's low-power UWB technology changes this paradigm by delivering bit-perfect audio exactly as encoded at the source with ultra-low latency rivaling wired connections. The technology's optimization for low power consumption makes it ideal for battery-powered devices, combining superior audio quality with energy efficiency.

This advancement addresses growing demand for high-fidelity wireless audio solutions while providing unparalleled stability and performance in increasingly congested wireless environments. As the industry moves toward more sophisticated audio applications, SPARK's UWB technology establishes new benchmarks for wireless audio fidelity and responsiveness that could reshape consumer expectations and industry standards. The full research details including video overview are available at https://www.sparkmicro.com/research, while CES 2025 attendees will experience the technology through live wireless headset demonstrations.