The Cyberon CSpotter is a local voice trigger and command recognition solution that consumes very low resources and provides high accuracy performance. It runs on Renesas RA 32-bit microcontrollers (MCUs) with 120MHz of speed and enough memory to support multi-language commands as well as H/W crypto engine for strong security.


  • Local voice recognition algorithm, no network connectivity needed
  • Phoneme-based modeling
    • Quick command customization: speech data does not have to be collected in advance
    • Optimization by model adaptation just with a small amount of speech data
  • Global language support: 30+ languages worldwide
  • Low resource requirement (Code: 22KB~28KB, Data: 22KB+ 4KB~8KB x # command)
  • Provides a friendly tool (CSMT) for command customization, performance tuning and testing
  • Separation of recognition engine and command model, switching commands dynamically
  • Low power and high efficiency RA 32-bit MCU with strong security function


  • IoT devices
  • Home appliances
  • Wearable/Hearable devices
  • Automotive

Documentation & Downloads

Title Other Languages Type Format File Size Date
Cyberon CSpotter Product Brief PDF 308 KB
Cyberon Voice Command Solution Specification Flyer PDF 465 KB

News & Additional Resources