Spanish Audio Preference Evaluator

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 their profiles, and apply to projects in minutes.

• Free to create an OpenTrain account
• Remote contract work in a fast-growing AI industry
• Part-time opportunity with a commitment of less than 20 hours per week

About AI Training and Audio Evaluation

AI training is the human work behind modern artificial intelligence. Contributors review, label, record, and evaluate examples so AI systems can better understand language and produce natural, useful responses.

In this project, your listening judgments will help assess Latin American Spanish speech. Careful evaluations of audio quality, clarity, and naturalness contribute to the development of better language and voice technologies.

• Work remotely with a computer, reliable internet connection, and headphones
• Use language knowledge and attention to detail to evaluate AI-related audio data
• Help shape how AI systems handle Latin American Spanish speech

The Role

OpenTrain AI is seeking a Latin American Spanish Audio Preference Evaluator for a project focused on Latin American Spanish speech evaluation. You will listen to two audio output options and make consistent A/B preference judgments according to detailed project guidelines.

The project is expected to run for 3 to 6 months. It is a part-time contractor opportunity for intermediate-level contributors and requires comfort working in Spanish.

• Pay: USD $6.50–$7.00 per hour
• Expected commitment: Less than 20 hours per week
• Engagement: Part-time contractor
• Project duration: Expected 3 to 6 months
• Data type: Audio
• Data is not pre-labeled

What You'll Do

You will evaluate audio recordings and compare two versions of an audio output. For each comparison, select which recording is better based on the project criteria and the provided rating guidance.

• Listen carefully to spoken Latin American Spanish audio
• Make A/B preference selections between two recordings
• Evaluate pronunciation, clarity, fluency, naturalness, accent appropriateness, and overall audio quality
• Follow detailed rating and preference guidelines consistently
• Complete evaluation and audio-recording labeling tasks using the project’s designated labeling software

Requirements

This role is intended for native or fluent Latin American Spanish speakers with strong listening comprehension. You should be able to recognize meaningful differences in spoken Spanish and make reliable judgments across repeated evaluations.

The project requires fluent English proficiency and enough English comprehension to understand written instructions. Experience is preferred but not required in every area listed below.

• Native or fluent proficiency in Latin American Spanish
• Strong comprehension of spoken Latin American Spanish
• Ability to distinguish pronunciation, clarity, fluency, accent, and naturalness
• Fluent English proficiency and comfort understanding written project instructions
• Ability to make consistent A/B judgments between audio recordings
• Experience with audio labeling workflows and evaluation or rating tasks
• Experience with audio evaluation, linguistic annotation, transcription, quality assurance, or related language-data work is preferred
• Familiarity with regional Latin American Spanish accents and vocabulary is preferred
• Access to a quiet listening environment and reliable headphones

Who Should Apply

Apply if you have a strong ear for Latin American Spanish and can assess spoken audio carefully and consistently. This project may suit language specialists, audio evaluators, annotators, transcriptionists, and others with relevant experience in Spanish speech evaluation.

• Applicants must be based in Argentina, Colombia, Chile, Mexico, Costa Rica, El Salvador, Guatemala, Nicaragua, Panama, Paraguay, or Venezuela
• Work comfortably in Spanish
• Be prepared to contribute fewer than 20 hours per week
• Bring careful listening skills and consistent attention to project guidelines