Ai-Thinker VC-01 Intelligent Offline Voice Module

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Ai-Thinker VC-01-01

Ai-Thinker VC-01 Intelligent Offline Voice Module

€2,54

Ai-Thinker VC-01 Intelligent Offline Voice Module

€2,54

The VC-01 is an advanced offline voice recognition module powered by the US516P6 chip. It supports Chinese and English control commands and delivers highly accurate speech recognition with a customizable wake-up word feature. This module is designed to meet the needs of smart devices, offering an easy-to-use RTOS-based SDK for seamless integration.

Features

  • Core Chip: Powered by the US516P6 chip, ensuring reliable and fast voice recognition.
  • Multilingual Support: Supports both Chinese and English control commands.
  • Customizable Pin Header: The VC-01 supports customizable pin header welding for easy integration into various devices.
  • High Recognition Accuracy: Achieves a recognition rate of over 98% for reliable performance.
  • Fast Recognition Time: The recognition process takes less than 100ms.
  • Long-Range Wake-Up: Supports wake-up distance of up to 5 meters, ideal for voice control in larger environments.
  • Customizable Command Vocabulary: Supports up to 150 custom command words.
  • Wake-Up Word Learning: The system can learn wake-up words without the need to recompile firmware.
  • Offline Recognition: Performs offline voice recognition without requiring an internet connection.
  • RTOS SDK: Provides a complete SDK based on RTOS for easy development.
  • AEC Echo Cancellation & Noise Reduction: Supports AEC (Acoustic Echo Cancellation) and steady-state noise reduction for clearer audio input.
  • MIC Input & Dual DAC Output: Supports single MIC input and dual-channel DAC output for high-quality audio output.

 

Specifications

Parameter Details
Core Chip US516P6
Voice Recognition Rate 98% or higher
Recognition Time <100ms
Wake-Up Distance >5 meters
Custom Commands Supports up to 150 commands
Wake-Up Word Learning No need for firmware recompilation
Voice Recognition Offline, no internet required
SDK Based on RTOS
Noise Cancellation Supports AEC and steady-state noise reduction
MIC Input Single MIC input
DAC Output Dual-channel DAC output

 

Key Features

  • Core Chip: Powered by the US516P6 chip, ensuring reliable and fast voice recognition.
  • Multilingual Support: Supports both Chinese and English control commands.
  • Customizable Pin Header: The VC-01 supports customizable pin header welding for easy integration into various devices.
  • High Recognition Accuracy: Achieves a recognition rate of over 98% for reliable performance.
  • Fast Recognition Time: The recognition process takes less than 100ms.
  • Long-Range Wake-Up: Supports wake-up distance of up to 5 meters, ideal for voice control in larger environments.
  • Customizable Command Vocabulary: Supports up to 150 custom command words.
  • Wake-Up Word Learning: The system can learn wake-up words without the need to recompile firmware.
  • Offline Recognition: Performs offline voice recognition without requiring an internet connection.
  • RTOS SDK: Provides a complete SDK based on RTOS for easy development.
  • AEC Echo Cancellation & Noise Reduction: Supports AEC (Acoustic Echo Cancellation) and steady-state noise reduction for clearer audio input.
  • MIC Input & Dual DAC Output: Supports single MIC input and dual-channel DAC output for high-quality audio output.

 

Technical Specifications




Parameter Details
Core Chip US516P6
Voice Recognition Rate 98% or higher
Recognition Time <100ms
Wake-Up Distance >5 meters
Custom Commands Supports up to 150 commands
Wake-Up Word Learning No need for firmware recompilation
Voice Recognition Offline, no internet required
SDK Based on RTOS
Noise Cancellation Supports AEC and steady-state noise reduction
MIC Input Single MIC input
DAC Output Dual-channel DAC output

 

Pinout Description

Pin Number Pin Name Function Description
1 VCC 3.6V-5V power input
2 GND Ground
3 TX1 GPIO_B6/UART1_TXD, 3.3V logic level
4 RX1 GPIO_B7/UART1_RXD, 3.3V logic level
5 IOB8 IO/Virtual UART TX
6 IOA27 IO/US_SPI_MOSI
7 3V3 3.3V digital output
8 GND Ground
9 SCL_3.3 I2C communication (3.3V)**
10 SDA_3.3 I2C data input (3.3V)**
11 SCL_5V I2C communication (5V)**
12 SDA_5V I2C data input (5V)**
13 IOA25 IO/ADC4/SPI_MISO
14 MIC- Microphone Input (Negative)
15 MIC+ Microphone Input (Positive)
16 IOA26 IO/ADC5/SPI_CLK
17 DAC_L Audio Output (Left channel)
18 DAC_R Audio Output (Right channel)
19 SPK- Speaker Negative terminal
20 SPK+ Speaker Positive terminal

  

Applications

  • Smart Home Devices: For controlling devices such as lights, thermostats, and security systems via voice.
  • Wearable Electronics: Integrate the module into fitness trackers, smartwatches, and other wearable tech for voice control.
  • Voice-Controlled Gadgets: Can be embedded in various consumer electronics to allow hands-free control.
  • Offline Voice Assistance: Provide offline speech recognition in devices without requiring an internet connection.
  • Industrial and IoT Applications: Use the module for voice control in industrial settings, machinery, or IoT-connected devices.

  

Product Details

vc-01_v1.0.0_specification

General Shipping Info


  • Shipping address must be in English without special symbols. Please notify us of address changes before the order is marked "Shipped."
  • Contact customer service for order changes. Orders marked "Shipped" cannot be modified.
  • All in-stock orders are shipped within 1 business day.
  • All items are inspected and carefully packed before dispatch.
  • Check parcel contents before signing; we are not responsible for transit damage.

Shipping Cost


Order Amount Germany EU & US Worldwide
€0 - €15 €6 €8 €10
€15 - €30 €4 €6 €8
€30 - €50 Free €4 €6
€50 and above Free Free €4

* Certain EU countries (UK, Switzerland, Norway, Ukraine, Iceland, etc.) follow international shipping rules.



Shipping Options

We ship via Deutsche Post, DHL, YunExpress, and 4PX with tracking.


Shipping Times

  • From German Warehouse:
    • Germany: 2-4 Business Days
    • Western EU: 3-5 Business Days
    • Eastern EU: 4-6 Business Days
  • From China Warehouse:
    • Asia: 2-5 Business Days
    • Western & Eastern EU: 7-10 Business Days
    • North America: 5-8 Business Days
    • South America: 7-15 Business Days
    • Australia: 5-8 Business Days
    • Africa: 5-15 Business Days

Important Notice:

  • Check product inventory location before purchase for accurate delivery estimates.


  • International Warehouse

  • We store products in Munich (Germany) and Shenzhen (China) for flexible logistics.

  • Customs and Taxes

  • We cover all import duties and taxes for shipments from Germany and China.
  • EU VAT applies based on current regulations.
  • Customs duties and import VAT apply when importing goods outside the EU.
  • Effective Date: March 25, 2024

    OpenELAB guarantees to provide accurate descriptions and high-quality products. If you encounter any problems with any executed purchase order, please notify OpenELAB within 60 days from the date of shipment.

    UNLESS OTHERWISE EXPRESSLY STIPULATED IN PERTICULAR AGREEMENT OR PURCHASE ORDER, OpenELAB MAKES NO WARRANTY OF FITNESS, SUITABILITY OR MERCHANTABILITY OF THE PRODUCT FOR ANY PARTICULAR PURPOSE OR SPECIAL CIRCUMSTANCE.

    Warranty Period

    General Term
    • Warranty Period of product sold by OpenELAB is 12 months as of the date of delivery.
    • OpenELAB will provide economic effort to replace or repair the product free of charge if the defects are caused due to reasons related to raw materials, designation, or manufacturing process.
    • OpenELAB will repair, replace the product under reasonable charges to the customer if the product defects meets this Warranty Policy.
    • OpenELAB will repairs, replace the defective product, or provide on-site technical support for products exceeding the warranty period on reasonable fees.

    Exceptions
    OpenELAB will refuse to provide warranty promises if:
    1. Products have been beyond the warranty period; or
    2. Defections are due to wrong use, improper maintenance or storage, or breach of user guides or menus provided by OpenELAB; or
    3. Defections are results of Force Majeure, which shall mean any acts of law, natural disaster, war, riots, strikes, insurrections, tsunami, typhoon, earthquake, terrorism, governmental sanctions, legislation changes or any similar event beyond such party’s reasonable control; or
    4. Customers have conducted repair actions on the products.
    5. For those specific product (e.g. Azure Sphere MT3620 Development Kit ) as notified to Customer expressly, in cases that the product is free from any Quality Defect and the product package has been opened by Customer.

    Returns & Refund

    If you are not satisfied with a product you bought, for whatever reason, it is possible to return it for refund within 5 days of receipt (10 days for an exchange). Please first email us to info@OpenELAB.io for return authorization.

    We would like to kindly remind you that the customer is responsible for shipping the product back to our warehouse in Europe, US or China, which ever is convenient to you.

    Return for Refund: within 5 days of receiving your product. (unopened)
    Return for Replacement: within 10 days of receiving your product. (damaged or defective)

    No returns will be accepted without having previously obtained a return authorization. All returns must be in its original mint and clean condition. Returns on damaged, scratched, programmed, burnt, or otherwise 'played with' product will not be accepted. The product must then be returned in its original packaging with its receipt and a small note including the user name, order number and the reason of the return. The note will help us to serve you better and improve our products. Reimbursement will be denied for any products which do not conform to the above mentioned conditions.

    Customer shall cover the cost of returning the product and need to pay for shipping (if you want a refund instead of a replacement). Shipping fees will only be refunded if the return is a result of a shipping error on OpenELAB’s part.
    Since the third-party payment platforms, such as PayPal and Braintree (Credit Card), will charge standard service fees amounting to 3.5% on all processed transactions. For refund orders via PayPal and Braintree, a corresponding deduction of the service fee will be made to cover the associated payment processing.

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