| Required SPL <10Hz I read at TRW web site some info about needing ~110dB at 5Hz for the sound to be noticeable. I suspect that is noticeable as an audible sound though, and not noticeable as your clothes are moving and the room is unhappy with you.
Does anyone know what sort of SPL you need at these lower frequencies in order to physically feel something, irrespective of hearing something? |