DSP, Micros & Memory


Embedded voice control via the STM32Cube

29 June 2022 DSP, Micros & Memory

The partnership between STMicroelectronics and Sensory Inc. has borne fruit in enabling embedded voice control through the STM32Cube software ecosystem. ST has announced a collaboration that will enable the STM32 microcontroller (MCU) user community to develop and prototype intuitive voice-based user interfaces for a wide range of smart embedded products.

The joint efforts pair the STM32 hardware and software with Sensory’s voice-control technologies, including the new VoiceHub online portal that supports seamless creation of embedded speech-recognition models using custom wake words, voice-control command sets, and large natural-language grammars in almost twenty languages and dialects.

The solution is based on an STM32Cube software extension package and runs on a high-performance STM32H7 MCU, taking advantage of its architecture, internal Flash, SRAM, and high CPU speed. This combination plays a key role in increasing voice-control accuracy and minimising command-recognition time. The voice application and speech models are hosted in the on-chip memory of the STM32 MCUs which further boosts the system integration and ease of use, as well as lowers the cost of ownership

“This collaboration is set to jump-start the development of embedded-voice user interfaces, adding friction-free command control and custom wake word to any device, from wearables to smart-home appliances,” said Ricardo De Sa Earp, executive vice president, general-purpose microcontroller sub-group vice president, STMicroelectronics. “The unique combination of ST and Sensory technologies will enable the STM32 user community to deploy ‘Voice AI on the edge’ without any programming, data-science, or machine-learning expertise, for free in prototypes and with favourable licensing terms in production.”

“Sensory designed our VoiceHub so developers could quickly and painlessly create custom speech-recognition models. However, after creating a custom model, integrating the model onto hardware, and moving to licensing terms were the next hurdles that needed to be cleared,” said Todd Mozer, CEO, Sensory. “This world-class collaboration with ST creates a complete software, hardware, and licensing package for embedded speech recognition across the STM32 family and makes adding voice UIs simple.”

ST’s new software package dedicated to voice-user interfaces is available at https://www.st.com/en/embedded-software/x-cube-localvui

For more information contact EBV Electrolink, +27 21 402 1940, [email protected], www.ebv.com


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