Speech Audio Specialist - Fully Remote

Mercor; São Paulo; Teletrabalho; BRL 89 000 - 156 000; Tempo integral

Vantagens oferecidas por esta oferta de emprego

Resumo da oferta

Mercor is seeking audio engineers to edit and quality-check Brazilian Portuguese voice recordings for speech and TTS applications. You will ensure clarity, naturalness, and consistency across large datasets used in machine learning pipelines.

Ideal candidates are native or near-native Portuguese speakers with experience editing speech recordings and using restoration tools like iZotope RX or Pro Tools. The role emphasizes accuracy at scale and collaboration with data and model teams.

Qualificações

• Native or near-native Brazilian Portuguese speaker with strong listening skills.
• Experience editing speech or voice recordings (not music).
• Understanding of speech audio quality standards and common dialogue issues.
• Hands-on with restoration tools like iZotope RX or Pro Tools.

Responsabilidades

• Edit 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 quality assurance checks for clipping, distortion, background noise, and artifacts.
• Ensure audio meets strict technical specifications for ML training pipelines.
• Evaluate recordings for pronunciation accuracy, naturalness, and fluency.
• Work with large batches of recordings, maintaining consistency and throughput.
• Collaborate with teams working on Brazilian Portuguese speech datasets, talent recordings, and model training workflows.

Conhecimentos

Brazilian Portuguese fluency

Speech editing experience

High-volume data handling

Attention to detail

Ferramentas

iZotope RX

Pro Tools

Descrição da oferta de emprego

OverviewWe'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