Music And Sound Annotation Expert Job at OpenTrain AI, Inc. in New York

Review short field recordings, identify musical and environmental details, compare audio clips, and rate AI-generated descriptions for $30-$45 per hour. The role requires three years of music or audio experience and 20+ hours each week.

Remote Hourly · $30–$45/hr

$30–$45/hr

Compensation

Contract, part-time

Engagement

Remote

Location

Oct 31, 2026

Posted

Open in 51 countries

Algeria

Argentina

Austria

Bahrain

Bangladesh

Belgium

Brazil

Canada

Chile

Colombia

Denmark

Egypt

France

Germany

Ghana

Greece

India

Indonesia

Italy

Japan

Jordan

Kazakhstan

Kenya

Kuwait

Kyrgyzstan

Lebanon

Malaysia

Mexico

Morocco

Netherlands

Nigeria

Oman

Pakistan

Palestine

Peru

Philippines

Portugal

Qatar

Saudi Arabia

Singapore

South Africa

Spain

Sri Lanka

Switzerland

Taiwan

Thailand

Tunisia

United Arab Emirates

United States

Uzbekistan

Vietnam

The work
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.

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.

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.

Requirements

Experience: Entry level

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