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Audio Engineer (Speech / TTS Audio Specialist) – Brazilian Portuguese
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About the Role
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
You're a Good Fit If You
- 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
- Experience working with TTS vendors or platforms
- Prior involvement in speech ML, voice AI, or dataset creation/annotation workflows
Role Highlights
Pay & Payout
Independent contractor engagement. Apply via the link below - Mercor handles onboarding and pays weekly via Stripe or Wise.
Common Questions
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