What the work is
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.
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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
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Who gets hired
- 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
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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
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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
The platform posted this on 13 Oct 2026.