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STM32 Local voice user interface expansion package

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Product overview


X-CUBE-LocalVUI implements local voice recognition user interfaces based on audio capture, and speech recognition. It integrates the Sensory TrulyHandsfree™ (THF) and TrulyNatural™ (TNL) software, and VoiceHub generated vocabulary examples. It also integrates the Picovoice Porcupine and Rhino software, and the Picovoice console generated vocabulary example. The audio capture is based on STM32 peripherals and middleware. It shows how to capture audio from the board microphone through SAI.
The example applications come with default speech recognition models. However, they can be easily updated with a user-specific model. For the Sensory-based examples, the specific model can be defined with the Sensory VoiceHub web tool. For the Picovoice-based example, the specific model can be defined with the Picovoice console web tool.
X-CUBE-LocalVUI provides an implementation on an STM32H747I-DISCO Discovery kit. It can be ported to some other STM32 microcontrollers and boards.
THF, TNL, and VoiceHub are products from Sensory, an authorized STMicroelectronics partner.
Porcupine, Rhino, and Picovoice console are products from Picovoice.
  • All features

    • Cloudless voice user interface (UI)
    • Audio capture from board microphone
    • Integration of automatic speech recognition (ASR) software
      • Sensory TrulyHandsfree™ (THF) software component
      • Sensory TrulyNatural™ (TNL) software component
      • Picovoice Porcupine and Rhino software components
    • Capability to build and integrate a customized voice UI vocabulary model
      • Vocabulary model built with Sensory VoiceHub
      • Vocabulary model built with Picovoice console
    • Support for wake word detection only, or wake word and command mode
    • Detected command logged on Virtual COM port
    • Possibility to connect the board as a USB device to record the microphone audio capture

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All tools & software

    • Part number



      Discovery kit with STM32H747XI MCU

      STM32 Discovery Kits ST


      Discovery kit with STM32H747XI MCU