Car cockpit equalization by warping filters

Sound reproduction within a car inside is a difficult task. Reverberation, reflection, echo, noise and vibration are some of the issues to account for . A first step in the direction of increasing sound comfort is that of equa lizing the acoustic pressure response in the frequency domain. A direct sol ution is that of implementing with a convolution filter the inverse of the acoustic measurements in the car cockpit. However this often results in ver y high number of taps, therefore more complex techniques must be adopted, w hich rely also on psychoacoustics considerations. In this paper an automati c tools to develop warping inverse filters for target car cockpits was desi gned and validated through experiments in commercial cars.