Even with normal pure-tone hearing, many people struggle to understand speech in noisy places. Hearing Test Pro is a Korean-language DIN (Digits-in-Noise) test that measures number recognition in noise, quantitatively assessing the speech-in-noise perception that conventional hearing tests miss.
The sound source is standardized and diagnostic validity has been verified — anyone can take the test easily in under 3 minutes.
Key Features
Standardized and Validated
- A hearing-in-noise test with standardized sound and verified diagnostic validity
- Validity for classifying degree of hearing loss published in an international journal
Quick, Easy Testing in Under 3 Minutes
- Anyone can complete the test easily in under 3 minutes
- Headphone-based — choose left, right, or binaural conditions
Clinical Result Report
- Prints a report ready for direct clinical use
- Presents DIN SRT (dB SNR) alongside an estimated hearing level
- Supports saving as Excel or PDF
Patient Data Management
- Includes patient registration and test history storage
- Load results by session to compare progress over time
Why measure 'speech-in-noise perception' separately?
- 01A hearing issue closely tied to social functioning
- 02Even people with normal hearing can struggle to understand speech in noise
- 03A significant share of hearing-aid users report difficulty understanding speech
- 04AI-powered cognitive–auditory diagnostic and rehabilitation algorithms are under development
Patents & Papers
Registered Patent
Korean Digits-in-Noise Test System
10-2954373
Patent Filed
Method and Apparatus for Hearing Ability Assessment
10-2024-0064205
PAPER
Development of a smartphone-based digits-in-noise test in Korean: a hearing screening tool for speech perception in noise. Ji-Hye Han, Dongwon Yi, Jihyun Lee, Won-Du Chang, and Hyo-Jeong Lee (2020). Journal of Korean Medical Science. 35(21).
PAPER
Evaluating the Korean digits-in-noise test to classify the degree of hearing loss. Ji-Hye Han, Sungmin-Jo, Seungik Jeon, Jihyun Lee, Jaehee Lee, and Heo-Jeong Lee (2025). International Journal of Audiology.