Ambiq Micro is partnering with DSP Concepts Inc. and Sensory Inc. to demonstrate a new level of energy efficiency in always-on keyword detect and on-device command phrase recognition for portable consumer products including smartwatches, earbuds, smart home end devices, health monitors, and wearables.
Voice control is transforming the way consumers interact with their electronic devices, whether at home, at work, or on-the-go. Until the development of Sensory's TrulyHandsfree and DSP Concepts Audio Weaver Voice UI, it has been very difficult to add highly accurate, always-listening voice control to battery-powered devices without sacrificing the user experience or battery life. The Apollo family of microcontrollers built on Ambiq Micro's patented Subthreshold Power Optimized Technology (SPOT™) further enhances the power efficiency of TrulyHandsfree and Audio Weaver UI while still providing ideal always-listening wake word and voice control performance for today's ultra-low-power devices.
By combining Sensory's Low Power Sound Detector (LPSD) and TrulyHandsfree wake word and command phrase detection with DSP Concept's quiescent sound detection, beamforming, and noise reduction, Ambiq Micro's Apollo2 microcontroller is able to achieve highly accurate key phrase detection rates while consuming 4x lower power consumption compared to existing solutions. This power and performance efficiency enables high-quality, multi-microphone beam forming and noise reduction algorithms to run for more than a week using a CR2032 battery.