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Why choose datatang?

Datatang provides off-the-shelf conversation datasets with high-quality, copyrighted speech, natural dialogue, and dialect data.
Datatang encrypted data collection tool guarantees security and authorized datasets with adherence to data authorizer rights.

Tailored Data Services for Conversational AI Service

Datatang AI collects and annotates customer service voice data for conversational AI training through simulated scenarios and deep machine learning.


Supports the voice data collection in accented English, mixed-English and other specified languages.


Supports tailored collection of real-life customer service voice data in multiple industries such as finance, insurance, e-commerce and mobile network operators.

Audio segmentation

Audio segmentation for long audio, noise, valid/invalid audio.

Speech transcription

Supports multi-paragraph transcription annotation for long and short natural speech audio.

Emotional annotation

Supports positive or negative emotions information annotation of the speaker's voice.

Supports comprehensive annotation needs for speech, image, video, point cloud, and text data.

Success Stories


The client hopes to enhance the recognition rate of the existing intelligent voice recognition AI. Datatang annotated 1000 hours of Cantonese customer service dialect voice data at a 95% sentence accuracy rate ((number of qualified sentences / total amount of sentences)*100). In order to solve the consistency of Cantonese characters.

Speech Recognition for Cantonese Customer Service

The client is developing intelligent customer service voice recognition technology from scratch. By sorting out the customer's scenarios, Datatang provides a systematic data solution, including 5000 hours of off-the-shelf speech datasets with heavy accent, natural conversations, and 1000 hours of annotated voice dataset for specific scenes, which helps the customer to launch.

Speech Recognition for Mandarin Customer Service


The customer wants to optimize the knowledge base of the customer service chatbot to improve the service quality. After fully understanding the customer's business, Datatang expands and optimizes the new knowledge points of customers, and deletes, adds and optimizes the similar problems according to the completed knowledge. We have completed the compilation.

Customer Service

Our Competitive Advantage

One-stop Data Service

Datatang.ai provides comprehensive data annotation and collection services to help you succeed with your AI projects.

Data QA System

Datatang delivers high-quality data with intelligent self-inspection, multiple quality checks, and ISO9001 certification.

Rich Annotation tools

30 proven annotation tools for full coverage of voice, image video, 3D point cloud and text data annotation requirements.

Compliance & Security

We follows Personal Information Protection Act, GDPR, ISO27001/ISO27701 for security and regulatory compliance.

AI-assisted pre-recognition

With the help of AI-assisted pre-recognition function, human-computer interaction semi-automatic annotation is realized.

Know More About Tailored Data Solutions