April 2022
Intermediate to advanced
344 pages
7h 18m
English
Keyword spotting (KWS) is a technology applied in a wide range of daily-life applications to enable an entirely hands-free experience with the device. The detection of the famous wake-up words OK Google, Alexa, Hey Siri, or Cortana represents a particular usage of this technology, where the smart assistant continuously listens for the magic phrase before starting to interact with the device.
Since KWS aims to identify utterances from real-time speech, it needs to be on-device, always-on, and running on a low-power system to be effective.
This chapter demonstrates the usage of KWS through Edge Impulse by building an application to voice control the light-emitting diode (LED)-emitting color ( ...