Inaudible sounds can indeed affect and possibly damage hearing. Here's a source: http://news.sciencemag.org/biology/2014/09/sounds-you-cant-hear-can-still-hurt-

Inaudible sounds can indeed affect and possibly damage hearing. Here's a source: http://news.sciencemag.org/biology/2014/09/sounds-you-cant-hear-can-still-hurt-your-ears http://news.sciencemag.org/biology/2014/09/sounds-you-cant-h... Ultrasound can also cause tissue damage at high intensity. I'd be cautious about making claims that humans are not damaged by high intensity sound, even if inaudible. Perhaps this is what you mean by saying "a conventional sense" but I just thought I'd expand on your answer in case others read it and get the wrong idea.