Pure tone audiometry
using bundled headphones and predefined calibration coefficients from the database (possible for
systematically increasing number of devices).
Calibration of the device (in the case of lack of predefined coefficients or for headphones other than bundled).
Browsing, annotating, printing and sharing the test results.
Customizable test frequencies (125 Hz - 18 kHz).
Interpretation of the results according to the age norms.
Selection of the calibration coefficients that were used during previous tests.
Adjustment of the calibration
(calibration coefficients may be adjusted on the basis of your audiogram that was produced using an audiometer).
Verification of the calibration coefficients.
Suppressing of the masking noise for the purpose of free field audiometry.
(offline access to tests results, without connecting to the server)
Synchronization (your tests results can be stored on a remote account, created for a given email address; data are easy to recover, transfer to/from any other mobile and can be automatically synchronized on different devices)
To the extent permitted by law this software is provided "as is", and any warranties, expressed or implied, including, but not limited to quality, reliability, conformity, security, efficiency, applicability, accuracy or infringement of regulations are disclaimed. The author made every effort to ensure that the application works properly. However, to the extent permitted by law, the author disclaims any responsibility for any indirect or direct loss which may arise in any way out of the use of this software. The user acknowledges and accepts all potential risks associated with using this software and states that the risk of any and all loss, damage or unsatisfactory performance of this software rests with the user. The author is allowed to collect and process anonymous information concerning performance of this application exclusively for the purposes of its development and for academic purposes. It needs to be remembered that this application does not replace professional medical healthcare and its role is purely informational.
The permission is required to download a predefined calibration coefficient from the remote database and store the test results. This is a required permission.
The permission is required to monitor the background noise during the test. The application analyses the surrounding sound and calculates its level. No other information that the sound level is processed. This is an optional permission.
android.permission .GET_ACCOUNTS .GET_CREDENTIALS
This permissions are required to transfer the data between devices. They are an optional permissions. They concern only Pro version.
All data collected by the app are processed solely for the purpose of service provision, application development and scientific research. The data have never been and will not be forwarded to third parties. Data processing for the purpose of application development and scientific research have been and will be anonymous. At any time, upon user request, the user data can be accessed, modified or permanently deleted.
Provided by the user
These data are provided by the user and are directly related to the app features. These include data such as:
- test results,
- calibration coefficients,
- optional: annotations concerning tests or subjects,
- optional: age provided for comparison with age norms.
Collected by the app
These data are implicitly collected by the app. These include data such as:
- time and duration of the test,
- device manufacturer, device model and identification number,
- IP address,
- optional: noise level during the test.
From the Google account
The only data retrieved from Google account is an email. The email is used to synchronize data between different devices of the same user and to identify data in communication with the support center. Its processing is optional and only concerns the Pro version.
Measuring the hearing threshold in relation to normal-hearing person
Masalski M, Kręcicki T.
Self-Test Web-Based Pure-Tone Audiometry: Validity Evaluation and Measurement Error Analysis.
J Med Internet Res 2013;15(4):e71
Methods of biological calibration
Masalski M, Grysiński T, Kręcicki T.
Biological Calibration for Web-Based Hearing Tests: Evaluation of the Methods.
J Med Internet Res 2014;16(1):e11
Calculation of the calibration coefficients for mobile devices
Masalski M, Kipiński L, Grysiński T, Kręcicki T. Hearing Tests on Mobile Devices: Evaluation of the Reference Sound Level by Means of Biological Calibration. J Med Internet Res 2016;18(5):e130Read
Comparison With Pure-Tone Audiometry
Masalski M, Kipiński L, Grysiński T, Kręcicki T. Hearing Tests Based on Biologically Calibrated Mobile Devices: Comparison With Pure-Tone Audiometry. JMIR Mhealth Uhealth 2018;6(1):e10Read
Worldwide Prevalence of Hearing Loss
Masalski M, Morawski K. Worldwide Prevalence of Hearing Loss Among Smartphone Users: Cross-Sectional Study Using a Mobile-Based App J Med Internet Res 2020;22(7):e17238Read
Optimization of the Speech Test Material
Masalski M, Adamczyk M, Morawski, K. Optimization of the Speech Test Material in a Group of Hearing Impaired Subjects: A Feasibility Study for Multilingual Digit Triplet Test Development. Audiol. Res. 2021;11:342-356Read
1. Install Hearing Test Pro on an old phone.
2. Import the data from the basic version (Settings -> Import previous tests).
3. Synchronize the data with the account (Settings -> Background synchronization).
4. Install Hearing Test Pro on a new phone and synchronize with the same account.
The application uses calibration coefficients determined for bundled headphones, which are distributed by the manufacturer together with the device. Calibration is based on calibration measurements carried out by other users thus the availability of the coefficients depends of popularity of the device model.
Two methods are available.
1. Calibration based on the hearing threshold of the normal-hearing person.
The variability of the hearing threshold for people aged 18-35 who had no previous hearing problems is relatively small. They can determine the reference sound level in relation to their hearing threshold. Of course, if we suspect hearing loss in ourselves, we cannot perform calibration ourselves.
2. Calibration based on the clinical audiogram.
Calibration coefficients can be also adjusted so that the app results match the clinical audiogram. After completing the demo test, long click on the results, select "Adjust calibration" and enter the clinical audiogram.
The application has been translated into Romanian thanks to the help of Tudor Antonie. Thank you, Antonie!
If you would like to help translate the app into your language, please contact firstname.lastname@example.org.
Information Technology in Medicine
Medical Practice Marcin Masalski
|Address: Gwiaździsta 23/1 m.2, 55-010 Radwanice, PL|
|Phone: +48 515 086 252|