Junjie H.

Key Skills

Software

No software listed

Top Subject Matter

Singing Voice Synthesis

Automatic Speech Recognition

Voice Restoration

Top Data Types

Audio

Text

Document

Top Task Types

Transcription

Freelancer Overview

Audio Data & Training Specialist. Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal and Proprietary Tooling. Education includes Associate Degree, Guangdong Open University (2015) and Diploma, Guangdong Light Industry Polytechnic (2011). AI-training focus includes data types such as Audio and labeling workflows including Transcription.

Labeling Experience

图像标注分析

ImageData Collection

对图像物体识别分析

2015 - Present

Audio Data & Training Specialist

AudioTranscription

Led high-fidelity phoneme-level annotation and data preparation for Mandarin, Cantonese, and English audio to power advanced Singing Voice Synthesis (SVS) and voice restoration AI engines. Established, documented, and maintained annotation standards and end-to-end training guidelines for audio data quality in leading AI labs. Identified and resolved backend data issues, significantly enhancing model training efficiency and outcomes. • Delivered multilingual phoneme annotation with high precision • Developed SOPs for annotation and training • Optimized data for SVS and ASR AI systems • Used industry-leading audio and annotation software

2018 - Present

Education

Work History