ProTest is used to test the sound quality of automotive warning sounders in the dashboard for different types of vehicle, including the BMW Mini. Initially, we carried out the initial engineering diagnosis on “good” and “faulty” units to develop the test technique that is well correlated with the subjective impression of the noise from the sounders. This was integrated into the electronic binnacle test system.
ProTest incorporated these specially developed algorithms that reflect accurately the subjective impression of the customers hearing the sounders and with no increase in the standard test regime time. As the 100% sounder testing regime eliminates potential warranty claims for this type of fault the system payed for itself within a few weeks.