Intuitive and simple user interface drives the growing demand for voice control, either complementing or replacing keyboards, touchscreens and other traditional controls. In this context the Voice Activity Detection becomes essential to achieve an ultra-low power consumption.The WT-d.01 is a pure logic Virtual Component (ViC) containing a Voice Activity Detection (VAD) engine. The WhisperTrigger™ can detect any voice from a PDM source and is ideally suited for triggering key word spotting or voice recognition algorithms thanks to its low detection latency, enabling a fast awakening of the voice subsystem.
- Voice activity detector enables drastic reduction in power consumptionSelf-adjustment to background noiseProgrammable DMIC clock frequency
Block Diagram of the Always-on Voice Activity Detection interfacing with digital microphones