Chord Zheng
Exploring the intersection of audiology R&D, software engineering, and artificial intelligence.
Experience
2024.07 – Present
CurrentSonova R&D Shanghai Audiology Research Center
Audiology Research Engineer
- Lead audiology and hearing-aid research initiatives, focusing on signal processing, fitting strategies, and user studies.
- Design and build internal software tools, automation scripts, and dashboards that streamline experimental workflows and data review.
- Partner with global R&D, marketing, and clinical teams to translate findings into product requirements and validation protocols.
2023 – 2024.05
Sonova — R&D / AT / MKT & Innovation Center
Intern
- Translated and produced 40+ technical training modules, supporting curriculum migration and on-site demonstrations.
- Developed 30+ Python utilities for audio/video handling and data processing, saving roughly 2,000 minutes of repetitive work.
2021.07 – 2022.12
Zhejiang Rehab Medical Center · Taizhou 2nd Hospital ENT & Sleep Clinics
Clinical Audiology Intern
- Completed 60+ pediatric and adult assessments (PTA, immittance, OAE) and delivered personalized rehabilitation roadmaps.
- Assisted hearing-aid fitting and cochlear implant mapping, providing follow-up counseling for diverse hearing profiles.
- Participated in vestibular assessments (ENG/VNG, Frenzel goggles) and developed differential diagnosis workflows for vertigo cases.
Selected Works
Dify Contribution
Audiology RAG Pipeline
Prototyped a RAG + fine-tuning workflow for audiology Q&A, including dataset curation, retrieval evaluation, and deployment scripts.
EEG Experiment Program
Built E-Prime Inline & MNN Psychopy paradigms for ERP studies with tight stimulus timing control and automated data collection.
QUEST+ Threshold Estimation
Implemented multiple parallel QUEST+ adaptive procedures to accelerate Speech Reception Threshold estimation.
Tooling & Automation Scripts
Part of Selected Works
Static Sound Source Localization
Testing suite for azimuth localization experiments with calibrated loudspeaker layouts.
EMA & Digital Research
Combined a MATLAB SAM log export utility with a WeChat mini-program workflow for EMA tasks, scheduling, questionnaires, and voice capture.
SAMLog Studio
Hearing-aid SAM log analysis platform with behavioral visual analytics and a local-model-assisted data-cleaning pipeline.
SenseData
Multi-modal sensory and behavioural analytics platform for structured exploration, statistical summaries, and research exports.
MoRos Workspace
Local-first desktop workspace that combines file management, Markdown editing, whiteboards, AI chat, and multi-format preview in one Electron app.
wavx
Modular Python audio toolkit published to PyPI, built to collapse repetitive amplitude, waveform, spectrogram, and RMS checks into one-line calls.
Polaris Market Geo Dashboard
Map-first market intelligence dashboard for hearing-aid retail coverage, dealer structure, and whitespace analysis across China.
SonicScope
VS Code audio inspection plugin that renders waveform and spectrogram views inside the IDE, helping catch RMS mismatch and silent-segment issues before over-debugging playback code.