Voice Recognition Chip for Embedded Products
Reliable voice command recognition. Low-power operation. Built for intelligent products.
Offline
Recognition
High Accuracy
Up to 98%
Privacy
Protection
Low Power
Consumption
Enable intelligent voice interaction without relying on cloud connectivity. Waytronic voice recognition solutions bring responsive, low-power voice control to smart products.
Voice Intelligence, Built Into the Chip.
Process voice commands locally for fast, private and reliable interaction.
Local Processing
No cloud required
Fast & Reliable
responsive in real-time
Privacy & Security
Data remains on the device
Low Power
optimization for battery
From Voice to Action.
01.Voice Input
Microphone captures the user's voice.
02 Audio Processing
The input signal is processed for reliable recognition.
03 Wake-Up
The system detects the predefined wake-up phrase.
04 Command Recognition
The chip identifies the user's voice command.
05 Command Output
Recognized commands are sent to the host controller.
06 Device Action
The product executes the corresponding function.
Offline Voice Recognition
Powerful Voice Recognition Performance
Designed for real-world environments, our voice recognition chips deliver reliable
performance with advanced technology.
Offline Recognition
Voice commands are processed locally without depending on an internet connection.
Wake-Up Detection
Detect predefined wake-up phrases for hands-free voice interaction.
Far-Field Recognition
Designed for voice interaction from practical distances in real-world environments.
Low-Power Operation
Optimized architectures help reduce power consumption in battery-powered products.
Up to 300 Commands
(Depending on the model)
Up to 8m Recognition
Far-field recognition
Up to 98% Accuracy
(under ideal conditions)
Low-power Operating Current
as low as 15–20 mA.
Offline vs Cloud
Why Offline Voice Recognition?
For simple commands and embedded voice control, local processing can provide a faster and more predictable user experience.
Comparison items
Offline Voice Recognition
Cloud Voice Recognition
Internet
Not required
Usually required
Response
Fast
Network dependent
Privacy
Local processing
Data may leave device
Connectivity
Works offline
Requires connection
Power
Optimized for embedded use
Depends on connectivity
Cost
No continuous cloud service
Potential cloud cost
Application Solutions
Give Products a Voice.
From simple commands to intelligent hands-free interaction, voice recognition enables a new generation of connected products.
Smart Home
Smart switches, Smart locks, Smart appliances.
Security
Alarms, Access control, Monitoring devices.
Read More→
Medical Devices
Medical equipment, Patient reminders, Diagnostic devices.
Read More→
Toys
Interactive toys, Educational products, Talking toys.
Read More→
Consumer Electronics
Small appliances, Digital devices, Personal electronics.
Read More→
Smart Lock
Smart locks, fingerprint locks, facial recognition locks
Chip Selection
Choose the Right Voice Recognition Chip.
Select the right solution based on command capacity, recognition distance, power consumption and package requirements.
Product Position
Entry Ultra-Low Power
Mid-Range Smart Home
Voice + BT Audio Combo
Baby Cry Specialist
Flagship Far-Field
Recognition Distance
0.5-2 meters
3-5 meters
5 meters
1-5 meters (indoor)
5-8 meters
Recognition Rate
90% (Quiet)
95% (Quiet)
95% (Quiet)
92% (Cry Detection)
98% (Quiet)
Command Words
15
40 / 80
80 / 150
Cry Pattern Detection
300 + Self-Learning
Special Features
Built-in 0.32W Amp
No crystal oscillator required
Bluetooth 5.1 (A2DP/HFP)
Cry Type Classification
Self-Learning + Snore Detection
Power Consumption
5-10mA / 5μA Sleep
15-20mA / 100μA Sleep
25-30mA / BT 40mA
< 25mA / 10μA Sleep
50-60mA Active
Audio Output
PWM Direct Drive
DAC (Ext Amp Req)
Dual 16-bit DAC
GPIO Pulse Output
High-Performance DAC
Wireless
—
—
BT 5.1 + BLE
—
OTA Update Support
Control Interface
UART Frame
UART (Up to 3Mbps)
UART (Up to 3Mbps)
UART + GPIO Pulse
UART (Up to 3Mbps)
Package
SOP8 (Compact)
SOP16 / SSOP24 / QFN32
SOP16 / SSOP24 / QFN32
SOP16 / SSOP24 / QFN32
SSOP24
Quick Selection Guide
Not sure which voice recognition IC fits your project? Pick your application below and get a direct recommendation.
Ultra-Low Power Battery Devices
Smart switches·Voice toys· Wearables, 2xAAA battery for 12+ months
01
Pick WTK6900P
SOP8 ultra-compact, 5uA sleep, built-in 0.32W amp, 15 commands sufficient
Smart Home Appliances
Kitchen appliances · Bathroom fixtures · Lighting control · 3-5 meter reliable range
02
Pick WTK6900HA
(Balanced — 5m range, 80 commands) · Primary recommendation for smart home
Smart Speaker / Bluetooth Audio
Voice command + Music streaming · Hands-free calling · BT 5.1 integrated
03
Pick WTK6900HC
Voice Recognition + Bluetooth 5.1 combo chip, eliminates separate BT module
Baby Monitor / Infant Care
Baby cry detection · Smart crib · Nursery automation · Sleep quality monitoring
04
Pick WTK6900HD4
Specialized baby cry recognition, 92% accuracy, Crying detection, 300ms response
Far-Field Premium Applications
Large rooms 8+ meters · Self-learning commands · Advanced features
05
Pick WTK6900FC
8-meter far-field, 300 commands, self-learning capability, snore detection, OTA update
Upgrade / Migration Path
Start with low-cost solution, upgrade as product matures without redesigning system
06
Pick WTK6900
WTK6900P → WTK6900HA → WTK6900FC · or · WTK6900HA → WTK6900HC (BT)
Recommended Products
Recommended Voice Recognition ICs
Explore Waytronic’s voice recognition chip portfolio for different command, distance and power requirements.
Engineering Flow
From Voice Commands to Mass Production.
Waytronic supports the complete development journey from voice command design to production-ready products.
01 Define Commands
Define wake-up words and control commands.
02 Select the Chip
Choose recognition capacity, package and power architecture.
03 Hardware Design
Integrate microphone, MCU and peripheral circuits.
04 Voice & Firmware Integration
Configure voice commands and device control logic.
05 Validation & Production
Optimize recognition performance and prepare for mass production.
Frequently Asked Questions
FAQs
Answers to common questions about our Voice Recognition Chips.
01. What is an Offline Voice Recognition Chip?
An Offline Voice Recognition Chip is an integrated IC that processes and recognizes predefined voice commands locally, without relying on a cloud server or continuous internet connection. It is suitable for smart home devices, appliances, security products, toys and other embedded applications.
02. How does an Offline Voice Recognition Chip work?
The chip receives audio through a microphone, processes the voice signal, detects predefined wake-up words or commands, and outputs the corresponding control signal to the host system. Voice processing and recognition are performed locally on the device.
03. Does an Offline Voice Recognition Chip require an Internet connection?
No. Offline voice recognition operates locally and does not require an internet connection for predefined commands. This makes it suitable for products that need fast response, reliable operation in areas without connectivity, or local voice processing.
04. How many voice commands can a Voice Recognition Chip recognize?
The command capacity depends on the specific chip and configuration. Some compact voice recognition ICs are designed for a small number of commands, while higher-capacity solutions can support hundreds of predefined commands. The appropriate chip should be selected according to the required command vocabulary.
05. What is the typical recognition distance of a Voice Recognition Chip?
Recognition distance depends on the chip, microphone, acoustic environment, voice volume and product design. Some Waytronic voice recognition solutions support short-range applications, while selected solutions can support far-field recognition of several meters under suitable conditions.
06. Can the voice commands and wake-up words be customized?
Yes. For supported solutions, wake-up words and predefined voice commands can be customized according to the application. This allows manufacturers to create branded voice interactions for smart appliances, locks, security devices, toys and other products.
07. Can a Voice Recognition Chip work with an external microphone?
Yes. Voice recognition systems can be designed with an external microphone or microphone circuit according to the selected chip architecture. Microphone type, placement, sensitivity and acoustic design can significantly affect recognition performance.
08. What are the advantages of Offline over Cloud Voice Recognition?
Offline voice recognition provides several advantages for embedded products, including no internet dependency, fast local response, lower communication requirements and local voice processing. It is particularly suitable for fixed command sets where cloud-based speech recognition is unnecessary.
09. How do I choose the right Voice Recognition Chip for my product?
Key selection factors include number of commands, recognition distance, wake-up method, microphone configuration, operating voltage, power consumption, package size, control interface and application requirements. For battery-powered products, power consumption should also be considered during chip selection.
10. Can Waytronic provide support for Voice Recognition product development?
Yes. Waytronic can support customers from voice recognition chip selection and command configuration to hardware integration, firmware development, testing and mass production. Our engineers can recommend a suitable solution based on the product’s recognition requirements, hardware architecture and target cost.
Ready to Add Voice Control to Your Product?
Tell us your command requirements, recognition distance and product application, and our engineers can help you select the right Voice Recognition Chip.