Ai-Thinker VC-01 Offline Speech Recognition Module

Ai-Thinker VC-01 Speech Recognition Module

Product Description

The Ai-Thinker VC-01 Speech Recognition Module is a compact and affordable offline voice control module designed for smart home devices, appliances, toys, lighting systems, control panels, and DIY electronics. Based on the US516P6 voice chip from Unisound, it provides fast voice recognition without requiring an internet connection.

The module supports up to 150 local voice commands, making it suitable for hands-free control applications where reliable offline operation is required.

Offline Speech Recognition

The VC-01 processes supported voice commands directly on the module, eliminating the need for cloud services or an internet connection. This makes it suitable for devices that require local, fast, and privacy-friendly voice interaction.

High-Performance Processing

The module features a 32-bit RISC CPU running at 240MHz, along with DSP and floating-point processing support. A built-in FFT accelerator helps optimize audio and speech signal processing for responsive voice recognition.

Development & Customization

The VC-01 includes a lightweight RTOS and multiple interfaces for integration into embedded products. Customization tools are available to help developers configure voice commands and adapt the module to different applications.

Key Features

• US516P6 Unisound voice chip
• 32-bit RISC CPU up to 240MHz
• Offline speech recognition
• Supports up to 150 local voice commands
• DSP and FPU support
• Built-in FFT accelerator
• Lightweight RTOS support
• Multiple hardware interfaces
• Power-on reset protection
• Low-voltage detection
• Watchdog functionality
• Suitable for smart-home and IoT applications
• Customization tools available

Typical Application Scenarios

Smart Home

Suitable for voice-controlled switches, lights, appliances, and automation systems.

Smart Devices

Can add offline voice control to embedded consumer and IoT products.

Toys

Useful for creating interactive toys with voice-command functionality.

Control Panels

Can be integrated into voice-controlled panels and embedded user interfaces.

Applications

• Smart switches
• Home automation
• Voice-controlled lighting
• Smart appliances
• IoT devices
• Interactive toys
• Voice control panels
• DIY electronics
• Embedded voice systems
• Hands-free control devices

Product Disclaimer

Product information may vary between manufacturers, suppliers, firmware versions, and production batches. Please verify the exact module specifications and supported interfaces before integrating it into a production system.

Product images are for representation only and may differ from the actual product in appearance, component markings, or other details.

Important Note

The number of supported commands, recognition performance, and available customization features may depend on the module firmware and configuration tools. Verify the exact capabilities of the supplied module before deployment.