Hello! I heard that the iPhone taptic engine engages while music is being played to function sort of as a subwoofer. I just got an iPhone 11 and... I think I can feel this? I read through some of the CHHapticEngine docs. But I was wondering what the parameters are for this feature: what is the crossover frequency, volume threshold, attack, and release time for this “taptic subwoofer”? If I master a song which has lots of low-frequency effects is this going to trigger the taptic engine? Etc. Lots of questions about this :)