---
title: Reference Design - Qualcomm QCS400 Smart Speaker / Soundbar
image: https://dspconcepts.com/hubfs/DSP_Concepts_featim042023.png
---

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## Qualcomm QCS400 Smart Speaker / Sound Bar

![Qualcomm QCS400 Smart Speaker / Sound Bar](https://dspconcepts.com/hs-fs/hubfs/board%20(11).png?width=500&height=400&name=board%20(11).png "Qualcomm QCS400 Smart Speaker / Sound Bar")

The Qualcomm QCS400 reference design accelerates time to market of home audio products with audio, connectivity, and display features that significantly reduce the overall BOM. Our AVS 2.1 premium far-field qualified TalkTo unlocks complex, feature-rich, voice-activated home audio products at a range of consumer tiers.

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

## Benefits

#### Full smart speaker / sound bar reference design

- Voice UI and multi-channel playback algorithms
- Multi-channel AEC for multi-channel speaker playback
- Multiple connectivity options

#### Reliable far-field performance

- 6m+ Far-field voice activation range
- AVS FFRS 2.1 premium qualified

#### Reduce development and certification costs

- Production ready algorithms tuned and optimized for MIPS

 

## Audio Front-end Features

#### DSP Concepts’ TalkTo for excellent 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 30 dB of external noise sources such as background music or a booming movie
- • 30+ dB Acoustic Echo Cancellation (AEC) for excellent barge-in performance

#### 3.1 and 5.1.2 channel 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](https://dspconcepts.com/hubfs/awe-icon.svg)

 Audio Weaver Core

 Embedded audio processing engine for Cortex-A53

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

 TalkTo Voice UI

 Noise reduction, echo cancellation and advanced beam-forming signal processing for far-field voice activation

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

 Multi-channel playback processing algorithms

![Software Integrations - Qualcomm SDK source code](https://dspconcepts.com/hubfs/awe-icon.svg)

 Qualcomm SDK source code

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

 Amazon Alexa wake word libraries

## Hardware Specifications

Processor: QCS405

- Quad-core ARM-Cortex A53 at 1.4 GHZ 
- Dual Hexagon DSP V66 800MHz with low power island and 700MHz with Qualcomm AI engine

Memory

- 4 GB NAND and 4GB RAM

Audio I/O

- 12x Channel Output
- PCIe, HDMI, I2C, ETH, SDIO, SPI, UART

Connectivity

- WiFi-5 (b/g/n/ac); WiFi-6 ready, 2x2 dual-band.
- Bluetooth 5.1, Low Energy and Bluetooth Classic.
- USB 2.0
- Zigbee (802.15.4)

## Included with the demo kit

- Qualcomm QCS40x SRDB board
- Square and circular mic array boards
- Voice UI Quick-start Bundle - Everything you need to know to design high-performance voice-enabled smart home products, from design guidelines and microphone placement to integration guides and tuning tools to get started.
- USB cables

![Qualcomm QCS400 Diagram](https://dspconcepts.com/hubfs/diagram-(4)-2.png "Qualcomm QCS400 Diagram")

## Ready to get started?

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