My grandfather had Alzheimer’s. In his final year, he stopped recognizing faces. But he never stopped recognizing the sound of rain on a tin roof—a sound from his childhood farm. Even when the rain stopped outside, he’d smile and say, “Still raining in my ears.”
Detractors called it a parlor trick. They argued that our brains already "equalize" sound naturally—we are used to our own ear anatomy. Changing the frequency response to create a "flat" response for your ear canal, they claimed, actually sounds unnatural. They accused Nura of using clever marketing (and heavy bass) to mask mediocre driver technology. nura is real