Voice Intelligent Technology

Overview

NXP's voice intelligent technology (VIT) library provides voice UI enablement with always-on wake word detection and local commands. It is based on state-of-the-art deep learning and speech recognition technologies and provides a complete audio front end / wake word / voice commands solution. The VIT library is complimentary for use with supported NXP devices and is available as precompiled libraries in the MCUXpresso SDK. VIT is available on several platforms: including those based on Arm^® Cortex^®-M7, Cadence Xtensa^® HiFi 4 and Fusion F1 cores.

For custom model generation contact us on local-commands@nxp.com

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Features

Always-on technology
Wake word model creation options:
- Text2Model: no audio database required
- Audio2Model: trained from database with audio files (higher performance, NRE required)
Custom commands using Text2Model
Large vocabulary available for Text2Model
Far-field audio front end supporting different microphones topologies (no tuning required) - up to 3 microphones supported
VAD (voice activity detection) helping minimize processing load during silent, non-speech period
English and Chinese language support

MoreLess

Features

Always-on technology
Wake word model creation options:
- Text2Model: no audio database required
- Audio2Model: trained from database with audio files (higher performance, NRE required)
Custom commands using Text2Model
Large vocabulary available for Text2Model
Far-field audio front end supporting different microphones topologies (no tuning required) - up to 3 microphones supported
VAD (voice activity detection) helping minimize processing load during silent, non-speech period
English and Chinese language support

User Guide

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Voice Intelligent Technology Overview

MCU Tech Minutes: Voice Controlled Audio Player Demo Using NXP’s Voice Intelligent Library (VIT) on i.MX RT600 MCUs

MCU Tech Minutes: Text-to-Model Demo Using NXP’s Voice Intelligent Library (VIT) on i.MX RT1170 MCUs

Voice Intelligent Technology Overview
MCU Tech Minutes: Voice Controlled Audio Player Demo Using NXP’s Voice Intelligent Library (VIT) on i.MX RT600 MCUs
MCU Tech Minutes: Text-to-Model Demo Using NXP’s Voice Intelligent Library (VIT) on i.MX RT1170 MCUs

Voice Intelligent Technology Overview

MCU Tech Minutes: Voice Controlled Audio Player Demo Using NXP’s Voice Intelligent Library (VIT) on i.MX RT600 MCUs

MCU Tech Minutes: Text-to-Model Demo Using NXP’s Voice Intelligent Library (VIT) on i.MX RT1170 MCUs

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Supported Devices

i.MX-RT600: i.MX RT600 Crossover MCU with Arm^® Cortex^®-M33 and DSP Cores
i.MX-RT500: i.MX RT500 Crossover MCU with Arm^® Cortex^®-M33, DSP and GPU Cores
i.MX-RT1060: i.MX RT1060 Crossover MCU with Arm^® Cortex^®-M7 Core
i.MX-RT1170: i.MX RT1170 Crossover MCU Family - First GHz MCU with Arm^® Cortex^®-M7 and Cortex-M4 Cores