Voice Data Training Annotator

About OpenTrain

OpenTrain AI is the hiring and contracting organization for this role and the #1 platform for finding and building careers in AI training and data labeling. OpenTrain helps people discover opportunities to teach and improve AI systems, build professional profiles, and apply to projects in minutes.

• Free to create an OpenTrain account
• Remote opportunities across the growing AI-training industry
• Flexible projects for part-time and contract contributors

About AI Training and Speech Data

AI training is the human work behind modern artificial intelligence. Contributors review, annotate, and evaluate examples so machine-learning and speech-recognition systems can better understand real-world language, pronunciation, intent, and accent variation.

• Help shape how speech technologies interpret human language
• Work with audio data used to improve machine-learning systems
• Build experience in a fast-growing area of technology

The Role

OpenTrain AI is seeking an intermediate Voice Data Training Annotator to evaluate and label human speech recordings. Your annotations will help machine-learning systems and speech-recognition tools understand pronunciation, speaker intent, and accents.

This is a remote, flexible contractor role performed in English. Work is expected to be available on an as-needed basis, with a project duration expected to run from 3 to 6 months.

• Employment type: Contractor and part-time
• Expected commitment: Less than 20 hours per week
• Work location: Worldwide and fully remote
• Language: Fluent English
• Pay: Approximately $15–$25 USD per hour, depending on language expertise and technical audio skills
• Typical rate listed for the role: $20 USD per hour

What You'll Do

You will review human speech recordings and assign accurate annotations according to project guidelines. The work includes evaluating audio and producing consistent labels that help speech technologies recognize how people speak and what they mean.

• Evaluate human speech recordings
• Label pronunciation and accent variation
• Interpret and annotate speaker intent
• Support speech-recognition and machine-learning systems
• Complete evaluation and rating tasks
• Generate text-based annotations from audio when required
• Use Label Studio for annotation work
• Apply project guidelines consistently and carefully

Requirements and Preferred Experience

Strong listening and language skills are important for this role. Contributors should be able to identify speech details accurately and produce consistent annotations in fluent English.

• Intermediate experience level
• Fluent English proficiency
• Strong listening skills
• Relevant expertise in pronunciation, accents, or intent interpretation
• Interest in or knowledge of speech technologies
• Experience with audio annotation, speech recognition, or machine-learning data work is valuable
• Experience with technical audio workflows is valuable
• Careful attention to detail

Who Should Apply

This opportunity may suit language-focused contributors, audio specialists, and people with experience evaluating speech data. It is also a fit for those interested in flexible, part-time work that directly contributes to the development of speech-recognition and machine-learning tools.

• Speech and language specialists
• Contributors familiar with pronunciation or accent analysis
• People with audio annotation or speech-recognition experience
• Individuals seeking flexible remote contractor work
• Applicants comfortable working independently on an as-needed schedule

Work Arrangement and Project Details

This project is fully remote and flexible. The source does not specify a required weekly schedule or a fixed project end date; contributors can work on an as-needed basis within the expected project window.

• Under 20 hours per week
• Expected project duration: 3 to 6 months
• Remote work available worldwide
• English-language project
• Part-time contractor arrangement