The Home Audiometer Hearing Test software turns your PC into a machine you can use to test your hearing through a standard sound card. While this is clearly not as accurate as a professional audiometer, it can give a good indication if there is a hearing problem or not and how severe it might be. The accuracy is 10-15 dB compared to 5dB of a professional unit, over a total hearing range of 70dB. Features include: - Test procedure to ISO standards; - Graphical display of results; - System is calibrated by ear without external hardware; - Data analysis and categorisation; Registered users are eligible to unlimited updates when they are released.