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Overview

The interaction between humans and devices is increasingly carried out through voice control, be it for plugged or battery-powered devices. This unavoidable trend is made feasible thanks to the emergence of powerful signal processing algorithms capable to convert, with high success rate, the human speech to text but also to understand meaningful information, such as keywords and commands.

Dolphin Integration introduces a breakthrough Voice Activity Detector, the WhisperTrigger™ to provide ultra-low power Always-On Voice Listening for the longest-lasting operation without battery recharge and for environmentally friendly devices.

Benefits

Ultimate power savings

The WhisperTrigger™ is a stand-alone feature. It enables to switch-off the audio DSP and ADC, to divide the power consumption by up to 50 times compared to conventional approaches at system level.

Self-adaptability

WhisperTrigger™ s self-adjustable algorithm ensures the best detection rate whatever the environment conditions of the user.

High-performances

WhisperTrigger™ s outstanding performance - up to 100% detection rate in both near field and far field conditions - are proven by the first benchmark in public domain, MIWOK™

Block Diagram

Features

  • Ultra-low power consumption 10µA always-on VAD mode
  • Self adaptative algorithm for fastest and best voice detection
  • 100% detection of vowels as per MIWOK measurement
  • Enabling up to 133 dB SPL of AOP for DMIC
  • Silicon proven in various processes and foundries

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