Sei Y.

Key Skills

Software

Data Annotation Tech

Top Subject Matter

Text-to-Speech (TTS) AI Model Training Data

Top Data Types

Audio

Top Task Types

Evaluation/Rating

Data Collection

Freelancer Overview

AI Product Manager for Speech Data Evaluation and Quality Assurance. Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal and Proprietary Tooling.  Education includes Master of Engineering, Meiji University (2023) and Bachelor of Engineering, Meiji University (2021). AI-training focus includes data types such as Audio and labeling workflows including Evaluation and Rating.

Labeling Experience

AI Product Manager for Speech Data Evaluation and Quality Assurance

Audio

As AI Product Manager, I led the quality acceptance and analysis of training data for Japanese and English speech synthesis models. I evaluated over 200 hours of AI speech training data to ensure compliance with model requirements and conducted comprehensive system assessments of TTS products. I developed an evaluation framework with multiple dimensions including pronunciation accuracy, rhythm, and dialect, and validated model performance through A/B testing and user research. • Quality acceptance of TTS model training audio data for AI applications • Developed a multi-dimensional evaluation system (accuracy, rhythm, dialect) • Over 200 hours of labeled and evaluated speech data • Led production of in-depth TTS model evaluation reports

2024 - 2025

Education

Work History