Overview
Description
Easy-to-use hardware platform for Voice User Interface (VUI) solutions based on the RA6E1 MCU.
This VUI partner-enabled solution is based on the RA family of 32-bit MCUs. The hardware platform is used for all VUI partner-enabled solutions provided by Renesas within the Renesas Ready Partner Network. It demonstrates how easy it is to control your system with a simple voice command interface without extensive coding experience or in-house expertise.
You will build an enhanced working solution that recognizes your own voice commands to trigger the corresponding operation using the Renesas Partner Network Solutions utilizing the Voice Hardware Platform.
Features
- Hardware Features:
- Compact VUI solution using RA6E1. Small 10*10mm size to fit into the end product.
- Local voice recognition algorithm, no network connectivity needed and supports two language recognition simultaneously.
- Choices of digital and analog microphones are populated for alternative input options.
- External QSPI flash memory enhances storage for voice samples and library data.
- Cyberon DSpotter (PDF) Enabled Features:
- Global language support of 40+ languages worldwide.
- Support voice tag function to let a user change command by voice recording.
- Support voice response function for acknowledge. Enhance user experience.
- DSMT tool supports wake-word and commands customization, performance tuning, testing, no prior neural network knowledge needed.
- Low Bill of Materials (BOM) cost and footprint. The minimum requirements are the MCU, one DMIC, and a power supply.
Applications
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Edge Voice User Interface (VUI)
Voice control with RA MCUs offers efficient, network-free voice recognition for smart devices.
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Additional Applications
- Edge applications enabling endpoint voice user interface independent from network/cloud/edge connections
- IoT devices
- Home appliances
- Wearable/Hearable devices
Documentation
Featured Documentation
Log in required to subscribe
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| Type | Title | Date |
| Quick Start Guide | Voice Kit RA6E1 Quick Start Guide
Power your Voice Kit RA6E1 with the quick start guide and sample project.
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| Manual - Development Tools | PDF 508 KB | |
| PCB Design Files | ZIP 175 KB | |
| Quick Start Guide | Voice Kit RA6E1 Voice Application Combo (VAS, VCR) Quick Start Guide
The quick start guide and project file for the Voice Kit RA6E1 guides developers to evaluate the voice AI application example combo of Voice Anti-Spoofing (VAS) and Voice Command Recognition (VCR).
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| Quick Start Guide | Voice Kit RA6E1 Voice Application Combo (VAS, VCR, SID) Quick Start Guide
The quick start guide and project file for the Voice Kit RA6E1 guides developers to evaluate the voice AI application example combo of Voice Anti-Spoofing (VAS), Voice Command Recognition (VCR), and Speaker ID (SID).
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| Quick Start Guide | Emergency Scream Detection for VOICE-RA6E1 - Quick Start Guide
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| Quick Start Guide | Audio Preprocessing Front - RA6E1
Improve speech clarity and boost reliable voice command recognition by reducing noise and enhancing directional audio processing with Renesas Audio Preprocessing Front (APF) with Voice Command Recognition (VCR).
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| Flyer | PDF 240 KB | |
| Quick Start Guide | Reality AI Utilities Plugin Quick Start Guide
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| Flyer | PDF 365 KB | |
| Flyer | PDF 301 KB | |
| Brochure | PDF 3.63 MB | |
| Flyer | PDF 656 KB | |
| Flyer | PDF 412 KB | |
| White Paper |
PDF
794 KB
This Design Journey demonstrates how to integrate Renesas RA6/4/2 MCUs with Cyberon DSpotter Voice UI technology to create a local, non-connected speech recognition solution for LED-based light bulb control. By designing a simple circuit and accompanying software, this guide highlights the ease, efficiency, and maintainability of incorporating Voice UI into your product using the RA6 Voice Kit.
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| White Paper |
PDF
441 KB
Traditional voice or speech recognition technology is based on a trained model with specific words or phrases. Natural language processing is word-order independent. This requires large computing power to run the real time data through a neural network. The Cyberon approach is different, allowing the algorithms to run on a small, general purpose MCU.
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| Flyer | PDF 402 KB 日本語 | |
17 items
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Design & Development
Software & Tools
Software & Tools
| Software title
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Software type
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Company
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| Cyberon DSpotter Provides local voice trigger and command recognition with robust noise reduction. Consumes very low resources while delivering high-accuracy performance. Runs on Renesas RA microcontroller unit (MCU) family, RX671, and RX72N, supporting multiple languages, connectivity functions, and security capabilities depending on the selected MCU. Enables offline operation without cloud connectivity for privacy and reliability.
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AI | Cyberon |
| Cyberon DSpotterNLU Provides local free speech control by combining speech recognition and natural language processing. Enables users to give natural and intuitive voice commands without memorizing specific terms. Supports developer tools for creating applications with simple text input, requiring no training data. Runs on Renesas RA8 microcontroller unit (MCU) platforms.
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AI | Cyberon |
| Cyberon Speaker Verification CNSV Provides speaker identification on MCU platforms using a neural network (NN) model. Enables content-independent voice verification with low recognition error rates and high robustness. Supports multiple speaker identification depending on system resources. Runs on Renesas RA8M1 and RA6E1 MCU platforms.
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AI | Cyberon |
| QuickConnect Platform QuickConnect platform enables fast prototyping by providing compatible hardware and software building blocks.
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Software and Hardware Development Tools | Renesas |
| RA Flexible Software Package (FSP) FSP is an enhanced software package designed to provide easy-to-use, scalable, high-quality software for embedded system designs using Renesas RA Family of Arm Microcontrollers.
Note: FSP with e² studio Installer (Platform Installer) will install the e² studio tool, FSP packs, GCC toolchain, and Segger J-Link drivers required to use this software. No additional installations are required.
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Software Package | Renesas |
| Reality AI Tools Reality AI Tools® users automatically explore sensor data and generate optimized models.
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Solution Toolkit | Renesas |
| Reality AI Utilities Round-trip workflow for AI development and performance validation allowing to collect data, optimize models, and deploy directly to Renesas hardware
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Solution Toolkit | Renesas |
| Spoken Language Understanding Local AI–based Spoken Language Understanding (SLU) model recognizes predefined key phrases with support for over 1 million phrases. Enables flexible grammar and vocabulary definition, allowing voice commands in varied formats to be accurately interpreted. Delivers 98%–99% accuracy with ~200 ms latency for fast, reliable response. Uses a customizable 400–600KB model. Runs on Cortex-M3, RISC-V, and low-power NPU. Robust in noisy and far-field conditions with low false triggers. Supports EN, CH, JP, and KR for appliances and wearables.
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AI | Aizip Inc. |
8 items
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Sample Code
Sample Code
Filters
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| Type | Title | Date Date |
| Sample Code | Voice Kit RA6E1 Voice Application Combo (VAS, VCR) Project
[Software=RA Flexible Software Package|v]
ZIP
13.75 MB
Application:
Artificial Intelligence (AI), Automotive, Communications Infrastructure, Consumer Electronics, Human Machine Interface (HMI), Industrial
Compiler:
ARMCC
Function:
Application Example
IDE:
e2 studio
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| Sample Code | Voice Kit RA6E1 Voice Application Combo (VAS, VCR, SID) Project
[Software=RA Flexible Software Package|v]
ZIP
13.62 MB
Application:
Artificial Intelligence (AI), Automotive, Communications Infrastructure, Consumer Electronics, Human Machine Interface (HMI), Industrial
Compiler:
ARMCC
Function:
Application Example
IDE:
e2 studio
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| Sample Code | Voice Kit RA6E1 Quick Start Guide Sample Project
[Software=RA Flexible Software Package|v]
ZIP
839 KB
Application:
Artificial Intelligence (AI), Automotive, Communications Infrastructure, Consumer Electronics, Human Machine Interface (HMI), Industrial
Compiler:
ARMCC
Function:
Application Example
IDE:
e2 studio
Power your Voice Kit RA6E1 with the quick start guide and sample project.
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| Sample Code | Emergency Scream Detection for VOICE-RA6E1 - Sample Code
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| Sample Code | Audio Preprocessing Front - RA6E1
Improve speech clarity and boost reliable voice command recognition by reducing noise and enhancing directional audio processing with Renesas Audio Preprocessing Front (APF) with Voice Command Recognition (VCR). This is the demo project file.
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| Sample Code | Reality AI Utilities Plugin - Glass Break Detection Demo Sample Code
[Software=FSP|v5.5.0 or later],[Toolchains=Reality AI Explorer Tier]
ZIP
5.18 MB
Compiler:
ARMCC
IDE:
e2 studio
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6 items
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Lab on the Cloud
Lab on the Cloud
Use our PC-based GUI to instantly start configuring and testing designs in our virtual lab, no physical board needed.
Product Options
| Part Number | Status | Stock | Sampleable | Key Features | MCU/MPU | Additional Features |
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| TW001-VUIA6E1POCZ | Active | Out of Stock | Available | Multilanguage Support | RA6E1 (Arm CM33, 200MHz, 1MB/256KB/8KB, 64LQFP) | 2xDMIC, 2xAMIC, QSPI, USB-C/B, UART, DAC AUDIO OUT, 2xOP-AMP, J-Link Segger |
Videos & Training
Voice recognition systems often struggle with background noise, leading to user frustration. Discover how the Renesas audio combination application solution integrates audio pre-processing and voice command recognition to deliver improved accuracy and enhanced reliability, even in noisy environments.
Additional Videos
Events & Webinars
News & Blog Posts
Blog Post Feb 5, 2026 |
Blog Post Jun 25, 2025 |
Blog Post Jan 29, 2025 |
Blog Post Jun 1, 2024 |
Blog Post Aug 29, 2022 |
News Jun 29, 2022 |
Blog Post May 30, 2022 |
Resources
Support
Support Communities
- RA6E1 VUI
Dear, I'm trying to test voice recognition with TW001-VUIA6E1POCZ . However, in the end, I'm facing an error as follows. Could you let me know why it happened? And please, let me get the latest DSpotterSDK. The message shows me the version as "Nov 1 2021". Thanks. This ...
Aug 16, 2023 - Voice-RA6E1 Schematic net label issues.
... exist incorrectly on multiple pins.My appologies if I am reading thi sincorrectly, please let me know if that is the case.PS. if the tw001-vuia6e1pocz-ra6e1-design-files.zip could get a non PDF version of the schematic in it, it may allow us to see if the ...
May 26, 2026 - Cyberon Dspotter login ID
Dear, Could you let me know where can I make the login ID? Thanks, This thread was automatically locked due to age.
Oct 16, 2023
Knowledge Base
- Voice Kit with RA Family: What is included in the kit and any other components to prepare in addition?
... us/en/products/microcontrollers-microprocessors/ra-cortex-m-mcus/vk-ra8m1-ra8m1-voice-user-reference-kitRA6E1 Voice User Reference Kit (TW001-VUIA6E1POCZ): https://www.renesas.com/us/en/products/microcontrollers-microprocessors/ra-cortex-m-mcus/tw001-vuia6e1pocz ...
Jul 26, 2024
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