Renesas 2023 23
third-party solutions as part of the Arm ecosystem
increases the range of choice for application
development. This means that developers can
choose the software model that best suits their needs
while utilizing Renesas's excellent Arm-based silicon
solutions as well as speed up the implementation time
of complex areas like connectivity and security.
Voice Recognition Engine
Based on the Renesas ecosystem, Cyberon DSpotter
(Figure 3) is a local voice trigger and command
recognition solution with robust noise reduction that
consumes very low resources and provides high-
accuracy performance. It supports multiple languages as
well as many connectivity function and security capable
depending on the selected MCU. The major features are
listed below:
• Local voice recognition algorithm, no network
connectivity needed
• Phoneme-based modeling
• Quick command customization—removes the need to
collect speech data in advance
• Optimization by model adaptation just with small
amount speech data
• Global language support: 44+ languages worldwide
Figure 3: Cyberon DSpotter voice recognition engine. (Source: Renesas Electronics)
• Small footprint and cost effective (single DMIC + RA6E1
or RA4E1)
• DSMT Tool: wake-word and commands customization,
performance tuning, testing, no prior neural network
knowledge needed.
• Separation of recognition engine and command model,
switching commands dynamically
• Low-power, high-efficiency RA MCU with strong
security function
