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João Lopes Marques

João Lopes Marques

Voice Actor for AI Training

PORTUGAL flag
Lisbon, Portugal
$15.00/hrIntermediateOneformaScale AIClickworker

Key Skills

Software

OneFormaOneForma
Scale AIScale AI
ClickworkerClickworker
Micro1
Other

Top Subject Matter

Portuguese Language
Speech Recognition
Language Modeling

Top Data Types

TextText
AudioAudio
ImageImage

Top Label Types

Evaluation Rating
Fine Tuning
Prompt Response Writing SFT
Text Generation
Translation Localization
Audio Recording

Freelancer Overview

Voice Actor for AI Training. Brings 32+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Other. AI-training focus includes data types such as Audio and labeling workflows including Audio Recording.

IntermediatePortugueseSpanishFrench

Labeling Experience

Voice Actor for AI Training

OtherAudioAudio Recording
Produced and reviewed Portuguese-language audio datasets for use in artificial intelligence training. Ensured quality, emotion accuracy, and script fidelity within the dataset. Focused on data intended to strengthen language and emotion detection in AI models. • Contributed to the project "Xylophone Grassland" / "Measurement Kimono." • Maintained high standards for native speaker accuracy. • Assessed and corrected labeling inconsistencies. • Collaborated on improvements to dataset specifications.

Produced and reviewed Portuguese-language audio datasets for use in artificial intelligence training. Ensured quality, emotion accuracy, and script fidelity within the dataset. Focused on data intended to strengthen language and emotion detection in AI models. • Contributed to the project "Xylophone Grassland" / "Measurement Kimono." • Maintained high standards for native speaker accuracy. • Assessed and corrected labeling inconsistencies. • Collaborated on improvements to dataset specifications.

2025 - Present

Education

C

Centro de Formação Protocolar de Jornalistas (Cenjor)

Expert in Journalism, Journalism

Expert in Journalism
1995 - 1996
U

Universidade de Lisboa

Post-graduation, European Studies

Post-graduation
1994 - 1995

Work History

A

Author

Writer and screenwriter (fiction and non-fiction) + journalist

Lisbon
1996 - Present
S

Self

Editor

Lisbon
2025 - Present