Results of third-party expert testing – now available – demonstrate bit-perfect performance that’s indistinguishable from wired sound
Montreal, Canada, September 17, 2026 — SPARK 微系统, a Canadian fabless semiconductor company specializing in next-generation short-range wireless communications, has released the findings of a new third-party expert research analysis demonstrating the bit-perfect wireless audio delivery achievable with SPARK’s Low-Energy Ultra-Wideband (LE-UWB™) technology.
研究结果最初是在……中发表的。 AES Show NY 并且是 now available in a video overview featuring SPARK Microsystems CTO Frederic Nabki and audio expert Jeff Anderson.
The research results demonstrate that SPARK LE-UWB™ audio delivery is indistinguishable from a wired transmission, exhibiting bit-perfect signal fidelity. This performance profile, complemented with low latency of under 7 milliseconds, enables uncorrupted, pristine wireless audio. The sound quality produced is vastly superior to legacy Bluetooth technology, distinguishing SPARK UWB as the wireless platform of choice for prestigious audio brands including 索纳斯·法伯 和 Focal.
Notably, the SPARK LE-UWB™ wireless connection also offered bi-directional audio transport, supporting an additional bit-perfect, low-latency uncompressed audio back channel. Although this feature was not a primary focus of the study, it highlights the versatility and advanced capabilities of the technology.
The testing was performed by Jeff Anderson, an independent audio engineering consultant with 25 years of industry expertise. Leveraging wired equipment as the reference, Anderson provides an in-depth comparison of SPARK’s LE-UWB technology to competing audio codecs including LDAC, aptX HD, aptX LL, and SBC. Fast Fourier Transform (FFT) measurements were used to evaluate the signal quality of the tested audio systems.
安德森的研究发现，LDAC、aptX 和 aptX HD 编解码器均存在较高的噪声基底和明显的失真，尤其是在高频段。蓝牙编解码器 LDAC 和 aptX HD 的延迟在 30 到 200 毫秒之间，导致音频质量下降并引入明显的延迟。相比之下，SPARK 的 UWB 技术能够提供清晰、无失真的信号，展现出卓越的保真度，其性能可与有线参考标准相媲美。
“Wireless solutions based on SPARK LE-UWB technology represent a major step forward, offering unparalleled stability and performance even in increasingly interference-prone environments,” said Rejean Bedel, Groupe Marketing Manager, Focal. “This advancement marks a turning point for high-end audio, enabling seamless, user-friendly, and wire-free products without compromising sound quality.”
“For decades, the industry has accepted compromises in sound quality, latency, and energy efficiency to make wireless audio possible. SPARK’s Low-Energy UWB technology changes that, delivering bit-perfect audio exactly as it was encoded at the source, with ultra-low latency that rivals wired connections,” said Frederic Nabki, Co-founder and CTO, SPARK Microsystems. “This breakthrough doesn’t just eliminate wires; it redefines what wireless audio can achieve, setting a new benchmark for fidelity and responsiveness, with low power consumption optimized for battery-powered devices.”
如需观看测试方法和结果数据的视频概述，并了解更多关于 SPARK 在音频应用中的超低延迟和能效优势， 点击此处了解更多信息. CES 2027 attendees can personally experience the superior sound quality of SPARK’s LE-UWB technology with a live demo of our wireless headset in our Palazzo suite.
关于SPARK微系统
SPARK Microsystems is building next-generation short-range wireless communication devices for consumer, industrial and medical applications. Leveraging patented LE-UWB™ technology, SPARK delivers ultra-low-power, high-speed wireless connectivity with unmatched interference robustness and exceptionally low latency. LE-UWB™ technology is ideally suited for wearables, peripherals, tags, sensors, and other IoT-connected devices that require reliable, high-performance data communication, as well as ranging and positioning capabilities. SPARK makes it possible to minimize and ultimately eliminate wires and batteries across a wide range of AI and IoT applications. For more information, visit sparkmicro.com.
SPARK MICROSYSTEMS, LE-UWB 和 DETERMINISTIC WIRELESS are trademarks or registered trademarks of SPARK Microsystems in Canada and/or other countries. All other trademarks are the property of their respective owners.
媒体联系人：
Rainier Communications on behalf of SPARK Microsystems
spark@rainierco.com
