Audio Engineer (Speech / TTS Audio Specialist) – Brazilian Portuguese

**Pay:** $20-$30 per hour (USD). **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**