Our lives in sound
Our lives are filled with sound. On average, Americans listen to music for more than 32 hours a week (Nielsen 2017 study). We spend hours in conversation with co-workers, friends and families. We hear the everyday sounds of traffic, appliances in our homes, television, athletic events, pets, and a great deal more. We never think about what our brains do with all of that – sometimes competing – auditory information.
But according to Dr. Nina Kraus, Director of the Auditory Neuroscience Lab (Brainvolts) at Northwestern University, making sense of sound is one of the most computationally complex tasks we ask our brains to do. Not only is there a staggering amount of information to process (something on the order of 9 million bits of data per second1), we have to process information in microseconds in order to respond if necessary. Continue reading