Remote Audio Engineer (Speech / TTS Audio Specialist) – Brazilian Portuguese - AI Trainer ($50-$50
mercor • Lubbock, Texas, US
5 hours ago
Salary
$50.00 hourly
Job type
- Full-time
- Remote
Job description
- 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