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Voice Recognition Module

WayTronic's voice recognition modules deliver offline AI voice control for smart devices with multi-language support and UART interface. No internet required—complete voice processing happens locally for enhanced privacy and instant response.

WTK6900M01 Module​

Image Model Recognition Distance Command Storage Languages Interface Power Supply Dimensions
WTK6900FC‑M01 WTK6900FC‑M01 5‑8 meters 300 entries Chinese, English, Japanese, others UART (3.3V TTL, up to 3Mbps) 3.6V ‑ 5.5V 36mm × 31mm × 5.66mm

WTK6900FC-M01 Highlights: DNN-HMM AI engine with BNPU V3 processor, triple UART interfaces (up to 3Mbps), high-performance audio codec (SNR ≥ 95dB), and powerful MCU capabilities (220 MHz CPU, 2MB Flash, 640KB SRAM). Ready-to-integrate module format eliminates firmware development complexity.

For chip-level integration, see our Voice Recognition IC  page for WTK6900 series chips.

Application Scenarios

Automotive Voice Systems

In-vehicle voice control for climate systems, entertainment, navigation, and phone functions. Offline operation ensures reliability without cellular data connectivity. Multi-language support serves global automotive markets.

Wearable Voice Devices

Compact voice recognition for smartwatches, fitness trackers, and hearable devices. Low power consumption extends battery life. 5-8 meter range maintains connectivity when device is worn or placed nearby.

waytronic-voice-chip-for-smart-toys
Interactive Smart Toys

Voice-enabled toys with natural language interaction capabilities. Command word self-learning adapts to children's speech patterns. Multi-language support enables global toy market deployment without hardware variants.

waytronic-voice-chip-for-smart-home-appliances
Smart Home Appliances

Voice-controlled air conditioners, washing machines, refrigerators, and kitchen appliances with offline reliability. 300-command capacity supports comprehensive appliance control including mode selection, temperature adjustment, timer setting, and feature activation.

industrial-voice-prompts-application
Industrial Voice Control

Hands-free equipment operation in manufacturing, warehouse, and logistics environments. Voice activation improves workplace safety by keeping operators' hands free. Noise reduction algorithms function in industrial acoustic environments.

voice chip for light
Smart Lighting Systems

Hands-free lighting control for residential and commercial environments. Voice commands for on/off switching, brightness adjustment, color mode selection, and scene control. Multi-room support with location-specific command recognition.

Why Choose WayTronic?

25+ Years Expertise

Trusted audio and voice IC manufacturer since 1999, serving leading brands worldwide in consumer electronics and smart devices.

True Offline AI

Genuine offline voice recognition with local processing. No cloud dependency, no privacy concerns, no recurring fees.

Production Ready

Complete module solutions eliminate firmware development. Stable supply chain, volume manufacturing, and direct engineering support.

Frequently Asked Questions (FAQ)

A voice recognition module is an embedded device that identifies and processes spoken commands locally without cloud connectivity. It captures audio through a microphone interface, processes voice patterns using AI algorithms, and triggers actions when commands are recognized. The module communicates with host systems via UART interface using simple command protocols.

Offline voice recognition processes all audio locally on the module using embedded AI algorithms and stored command vocabularies. The WTK6900FC-M01’s BNPU V3 processor analyzes voice patterns in real-time, matches them against 300 stored commands, and outputs recognition results via UART. No cloud connectivity or internet access required for operation.

The WTK6900FC-M01 achieves 5-8 meter voice detection range in typical indoor environments. Recognition accuracy depends on ambient noise, microphone quality, and acoustic conditions. Advanced noise cancellation and beamforming algorithms maintain performance across the full distance range. Far-field voice technology captures commands from across the room reliably.

The WTK6900FC-M01 supports Chinese, English, Japanese, and other global languages with customizable language models. You can program command phrases in supported languages using WayTronic’s configuration tools via UART interface. Additional language support and custom vocabulary development available upon request for specific market requirements.

Connect the module’s UART TX/RX pins to your microcontroller’s serial port using 3.3V TTL levels. Supply 3.6-5.5V power (typical 5V) with 460mA capacity. Use simple AT command protocol to configure settings and receive recognition events. Sample code available for Arduino, ESP32, and STM32 platforms. Typical integration time 1-2 hours.

Yes, you can program custom wake words and command phrases specific to your application. The WTK6900FC-M01 stores up to 300 offline command entries that can be configured via UART interface using WayTronic’s programming tools. Commands can be updated in deployed devices. Custom firmware development available for specialized requirements.

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