Ai-Thinker VC-01 is an intelligent offline voice recognition module based on the US516P6 chip, designed for offline voice control, smart home, small appliances, toys, lighting products, and other embedded voice interaction scenarios. As part of the official Ai-Thinker VC series, the VC-01 focuses on offline speech recognition without internet dependency, fast response, strong wake-up performance, and practical command customization. The Ai-Thinker VC-01 offline voice module supports Chinese and English control commands, customizable wake-up words, and up to 150 local command words. For developers working on voice-controlled devices, offline voice interaction, and embedded smart products, the VC-01 provides a compact and practical voice solution with RTOS SDK support and audio-oriented interfaces. Features Offline voice recognition module based on the US516P6 voice chip Supports Chinese and English control commands for practical voice interaction Recognition accuracy above 98% according to official product information Recognition response time under 100ms for fast voice command feedback Wake-up distance over 5 meters in suitable application environments Supports up to 150 custom local command words Supports wake-up word learning without recompiling firmware Pure offline voice recognition with no internet connection required Provides an RTOS-based SDK for development and customization Supports AEC and steady-state noise reduction for better audio input quality Supports single MIC input and dual-channel DAC output Specifications Parameter Details Brand Ai-Thinker Model VC-01 Core Chip US516P6 Product Type Offline voice recognition module Voice Recognition Rate 98% or higher Recognition Time Less than 100ms Wake-Up Distance More than 5 meters Custom Commands Up to 150 local commands Wake-Up Word Learning Supported without firmware recompilation Voice Recognition Mode Offline SDK RTOS based Audio Processing AEC and steady-state noise reduction MIC Input Single MIC input DAC Output Dual-channel DAC output Applications Smart home devices using offline voice control for lights, switches, and home appliances Small household appliances and consumer products that need voice command interaction Voice-controlled gadgets, toys, lamps, and embedded audio products Projects that need offline speech recognition without cloud dependency Industrial and IoT products requiring local voice interaction and low-latency response Other Content Ai-Thinker VC-01 belongs to the official VC module series, which is positioned as an AI-enabled offline voice recognition solution. Official series information highlights high wake-up accuracy, longer wake-up distance, low false activation rate, stronger anti-noise capability, fast response, and complete offline operation independent of internet connectivity. For product development, the VC-01 offline voice module provides a practical entry point for embedded voice projects because it combines command recognition, wake-up word learning, audio processing, and developer-oriented tools in a single compact solution. This makes it suitable for engineers building voice-controlled smart home devices and other local voice interaction products. Resources Ai-Thinker VC module series official topic page VC-01 specification VC module series firmware Ai-Thinker offline voice modules overview FAQ Does the VC-01 work without internet? Yes. The Ai-Thinker VC-01 is an offline voice recognition module, so it can perform local voice recognition without relying on an internet connection. How many local voice commands does the VC-01 support? According to the official information, the VC-01 supports up to 150 local command words. Can the VC-01 learn a wake-up word? Yes. The official feature list states that the VC-01 supports wake-up word learning without requiring firmware recompilation. What kind of products is the VC-01 suitable for? The Ai-Thinker VC-01 offline voice module is suitable for smart home devices, small household appliances, toys, lamps, and other embedded products that need local voice control.
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