---
title: "Reference Design - TalkTo for ST: AWS IoT"
image: https://dspconcepts.com/hubfs/DSP_Concepts_featim042023.png
---

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## TalkTo for ST: AWS IoT

![TalkTo for ST: AWS IoT](https://dspconcepts.com/hs-fs/hubfs/board%20(14).png?width=500&height=400&name=board%20(14).png "TalkTo for ST: AWS IoT")

Jumpstart the design of Alexa-enabled appliances with ST’s AVS for AWS IoT qualified platform powered by Audio Weaver and TalkTo. ST Voice for AWS IoT brings high-quality voice control to the high-performing STM32H7 MCUs. The energy-efficient STM32H7 is ideal for low-cost, small, and simple connected devices that require state-of-the-art functionality such as far-field audio capture and natural language understanding.

[ Request a Demo ](https://audioinnovation.dspconcepts.com/request-demo?hsLang=en)

#### AVS Integration for AWS IoT

- Integrate Alexa into any connected device with STM32H7 MCUs
- Out of the box connectivity to AWS IoT

#### Reliable far-field performance

- AVS 2.1 qualified
- Production ready algorithms

#### Cost-effective BOM for small form factors

- Runs on single low-cost STM32H7 MCU
- No external memory required
- Optimized for MIPS and Memory

## Audio Front-end Features

#### DSP Concepts’ TalkTo provides reliable far-field performance in noisy environments

- • 2-mic Beamformer with Single Channel Noise Reduction
- • State-of-the-art noise cancellation with Adaptive Interference Canceller (AIC) 
    - ○ No reference signal needed
    - ○ Eliminates 30dB of external noise sources such as background music or a booming movie
- • 35dB Acoustic Echo Cancellation (AEC) for excellent barge-in performance

#### AVS 2.1 qualified design with AWS IoT integration

# Support speaker output with integrated playback processing

## Software Integrations

![Software Integrations - Audio Weaver Designer](https://dspconcepts.com/hubfs/awe-icon.svg)

 Audio Weaver Designer

 Drag-and-drop graphical tool to customize and tune audio processing models in real-time with 500+ modules

![Software Integrations - Audio Weaver Core for ST Voice](https://dspconcepts.com/hubfs/awe-icon.svg)

 Audio Weaver Core for ST Voice

 Embedded audio processing engine for Cortex-M7

![Software Integrations - Alexa](https://dspconcepts.com/hubfs/awe-icon.svg)

 Amazon Alexa wake word with out-of-the-box connectivity with AWS IoT Coreinteract with AVS for AWS IoT Core

![Software Integrations - Noise Reduction](https://dspconcepts.com/hubfs/awe-icon.svg)

 Noise reduction, echo cancellation and advanced beam-forming signal processing for far-field audio detection

## Hardware Specifications

- High-performance STM32H743 MCU
- Simple layout for cost-effective deployments in end products
- Low-cost 2-layer PCB (36mm x 65mm) board
- 2 microphone array on a daughter card
- Integrated speaker
- Murata Wi-Fi module
- Modular design allows users to change/expand audio inputs (mics), output stages, and audio i/o

 

## Included with the demo kit

- STM32H747 AVS for AWS IoT board
- Linear Microphone array daughter card
- Integrated Speaker
- Voice UI Quickstart Bundle: Everything you need to know to design voice-enabled IoT products, including design guidelines, microphone placement, an Audio Weaver Designer layout (.AWD), and tools to get started.
- USB cable

![STM32H747 MCU Diagram](https://dspconcepts.com/hubfs/diagram-(6).png "STM32H747 MCU Diagram")

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