QCS400 Series
Designed specifically for smart audio applications with an unparalleled level of integration and next-generation Voice UI compared to our previous SoCs, enhanced with our cutting-edge Qualcomm® AI Engine.
Designed specifically for smart audio applications with an unparalleled level of integration and next-generation Voice UI compared to our previous SoCs, enhanced with our cutting-edge Qualcomm® AI Engine.
Qualcomm QCS400 SoCs are products of Qualcomm Technologies, Inc. and/or its subsidiaries.
Featured Documents
Product Brief
Ultimate audio experiences
Truly superior audio performance, with support for Dolby Atmos and DTS:X immersive home audio, Qualcomm® DDFA™ amplifier technology, and Qualcomm® aptX™ audio.
Advanced DSP
Dedicated high performance audio DSP with hardware enhancement capable of up to 32 channels of audio post processing. Dual DSP cores and integrated Qualcomm AI Engine designed for high performance and low-power keyword detection.
Next-generation Voice UI
SoCs designed to deliver configurable multi-keyword detection with Local Automatic Speech Recognition for customizable user experiences, and multi-mic beamforming noise suppression with mono, stereo and multichannel echo cancellation.
Low-power optimization
Supports new levels of performance for portable and battery-powered speakers compared to our previous SoCs, and helps reduce standby current requirements for mains-connected speakers or smart assistants.
Industry-leading integration
Unique, highly-integrated yet flexible single-chip architecture designed to deliver substantial power efficiencies, performance improvements and opportunities for advanced feature innovation, as well as helping manufacturers to reduce BOM.
Industry-leading connectivity
Includes industry-leading connectivity with low-latency in-room and multi-room streaming, as well as advanced Wi-Fi, Bluetooth, and Zigbee coexistence technology
Innovation at all tiers
The QCS400 series includes SoC variants at multiple tiers to help OEMs scale across a range of smart audio product types and applications.
Development support
Help to reduce product development time and cost, with our Audio Development Kit (ADK), and Software Evaluation Kit, as well as hardware reference designs
Compare related products.
| Voice & Music Applications | AIE CPU | AIE GPU | AIE DSP | CPU Cores | DSP Audio | DSP Compute | DSP Clock Speed | Wi-Fi Standards | Wi-Fi Features | Bluetooth Version | LR-WPAN Protocol | Voice UI | Audio Technology | Audio Channels Supported | Operating System |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Smart Assistant Smart Speakers | Dual-core CPU | V66 800 MHz with low power island | V66 700 MHz with Qualcomm® AI Engine | 1.4 GHz | 802.11ax-ready 802.11ac | Dual-band simultaneous (DBS) | Bluetooth 5.1 | Zigbee | 4-microphone far-field voice pickup noise cancellation Low-power standby with voice wakeup | Dolby Digital/Digital+ Low-latency streaming Qualcomm® DDFA™ amplifier technology Virtual X Qualcomm® aptX™ audio technology | 12 | Linux | |||
Smart Speakers | Quad-core CPU | V66 800 MHz with low power island | V66 700 MHz with Qualcomm® AI Engine | 1.4 GHz | 802.11ax-ready 802.11ac | Dual-band simultaneous (DBS) | Bluetooth 5.1 | Zigbee | 4-microphone far-field voice pickup noise cancellation Low-power standby with voice wakeup | Low-latency streaming Qualcomm® DDFA™ amplifier technology Qualcomm® aptX™ audio technology | Linux | ||||
Soundbars & Home Theater Smart Speakers | Quad-core CPU | Qualcomm® Adreno™ 306 GPU | 2x Qualcomm® Hexagon™ DSP | Quad-core CPU | V66 800 MHz with low power island | V66 700 MHz with Qualcomm® AI Engine | 1.4 GHz | 802.11ax-ready 802.11ac | Dual-band simultaneous (DBS) | Bluetooth 5.1 | Zigbee | 4-microphone far-field voice pickup noise cancellation Low-power standby with voice wakeup | Dolby Atmos DTS:X Low-latency streaming Qualcomm® DDFA™ amplifier technology Qualcomm® aptX™ audio technology | 12 | Linux |
AVR | Quad-core CPU | Qualcomm® Adreno™ 306 GPU | 2x Qualcomm® Hexagon™ DSP | Quad-core CPU | V66 800 MHz with low power island | V66 700 MHz with Qualcomm® AI Engine | 1.4 GHz | 802.11ax-ready 802.11ac | Dual-band simultaneous (DBS) | Bluetooth 5.1 | Zigbee | 4-microphone far-field voice pickup noise cancellation Low-power standby with voice wakeup | Dolby Atmos Low-latency streaming Qualcomm® DDFA™ amplifier technology Qualcomm® aptX™ audio technology | 32 | Linux |