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Audio Engineer (Speech / TTS Audio Specialist) – Brazilian Portuguese - Earn up to $30/hr! (Train AI Models Part Time!)

Kansas City, United States · Remote Full-time
Audio EngineerEditor

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Pay: $20 to $30 per hour (paid weekly, flexible part-time hours)

Overview We're looking for audio engineers with strong experience editing and quality-checking voice recordings for speech and text-to-speech (TTS) applications, specifically for Brazilian Portuguese-language audio. This role focuses on preparing high-quality audio datasets for machine learning systems, ensuring clarity, consistency, and technical compliance across large volumes of Brazilian Portuguese speech data. Native or near-native Brazilian Portuguese fluency is required to accurately assess speech quality, pronunciation, and naturalness.

What You'll Do

  • Edit and process Brazilian Portuguese voice recordings for use in TTS and speech AI systems
  • Perform audio cleanup including silence trimming, breath reduction/removal, de-clicking, de-essing, and noise reduction
  • Conduct detailed quality assurance checks for:
    • Clipping and distortion
    • Background noise and artifacts
    • Loudness consistency and level balancing
  • Ensure audio meets strict technical specifications for ML training pipelines
  • Evaluate recordings for Brazilian Portuguese pronunciation accuracy, naturalness, and fluency
  • Work with large batches of recordings, maintaining consistency and throughput
  • Collaborate with teams working on Brazilian Portuguese speech datasets, voice talent recordings, and model training workflows

Basic Qualifications

  • Native or near-native Brazilian Portuguese speaker with strong listening intuition for Brazilian Portuguese speech nuances
  • Experience editing speech or voice recordings (not just music production)
  • Strong understanding of speech audio quality standards and common issues in recorded dialogue
  • Hands-on experience with tools like iZotope RX, Pro Tools, or similar audio restoration software
  • Ability to identify and fix artifacts, inconsistencies, and technical defects in audio
  • Experience working with high-volume audio datasets or structured workflows

Preferred Qualifications

  • Experience working with TTS vendors or platforms
  • Prior involvement in speech ML, voice AI, or dataset creation/annotation workflows
  • Familiarity with audio QA pipelines, labeling, or evaluation processes
  • Experience directing or editing Brazilian Portuguese voice talent recordings

Ideal Candidate Profile

  • Detail-oriented with strong critical listening skills in Brazilian Portuguese
  • Comfortable working with repetitive, high-precision tasks at scale
  • Able to balance speed and quality in production environments
  • Familiar with the nuances of human Brazilian Portuguese speech vs synthetic voice requirements

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