Music And Sound Annotation Expert

You will support AI training by listening closely to short real-world recordings and documenting what can be heard. Your work will combine music analysis, audio annotation, and review of AI-generated descriptions.

You will use quality headphones to analyze 30- to 90-second clips, including recordings made in busy or noisy settings. You will make structured annotations, add timestamps, and write short notes supported by what you hear.

• Identify instruments, tempo, musical key, crowd reactions, traffic, sirens, applause, and other background sounds.
• Record the timing of audible events with timestamps, dropdowns, and structured notes.
• Compare paired recordings of the same song and identify which characteristics stay consistent or change between locations.
• Review AI-generated descriptions and mark details as correct, wrong, or invented, with brief evidence-based comments.
• Take part in a paid onboarding and calibration session and a short weekly sync.

What It Pays And Takes

This is a part-time contract role open to candidates in the listed countries. The work requires at least 20 hours each week and clear written English for concise annotation notes.

• Pay: $30 to $45 per hour.
• Time: 20+ hours per week.
• Location: Open to candidates in the listed countries across North America, South America, Europe, Asia, Africa, and the Middle East.
• Language: Fluent written English.
• Experience: At least three years of hands-on music or audio experience.
• Listening skills: Ability to analyze busy, noisy recordings, identify tempo within a few beats per minute, and determine musical key. A reference is permitted for relative pitch.
• Equipment: Quality headphones, a quiet workspace, and reliable internet.
• Helpful backgrounds include performing or gigging musician, session player, producer, mixing engineer, music educator, ear-training instructor, band or choir director, conservatory student or graduate, location sound recordist, sound designer, foley artist, or podcast or documentary audio editor.
• You should be comfortable with repetitive, detail-focused annotation using dropdowns, timestamps, and structured notes.

How It Works

Apply on OpenTrain with your resume, then complete the application on the hiring site.

About AI Training Work

AI training is the human work behind systems that learn from examples, including listening to audio, labeling details, and reviewing model responses. People with strong subject knowledge help make those examples accurate and useful.