Tag Archives: speech processing

I got rhythm, I got music. . . I got READING

Why study music, cont.

George and Ira Gershwin wrote the famous “I Got Rhythm, I Got Music” in 1930.  Little did they know that, over 80 years later, a neuroscientist named Nina Kraus and her colleagues at the Auditory Neuroscience lab (Brainvolts) at Northwestern University would show a connection between rhythm, music — and reading.  Before we get to the reading part, let’s digress for a few moments and talk about synchronization and rhythm.

Timing and rhythm

Most of us are able to keep time to a beat.  We dance to music, we clap to a beat, we tap our fingers to a catchy tune – even if we’re hearing it in our mind. Synchronizing to a beat is about timing – matching your beat at the exact point in time to the sound of someone else’s beat or to a musical beat.  One must precisely match a sound (auditory) with a movement (motor).

Even infants love to move to music.  They hear music and their entire bodies begin  to move. Infants can’t synchronize exactly because they don’t yet have the muscle control to match the auditory signal, but the twins below are clearly hearing the beat and their bodies want to move to it.  The impetus to move to music is universal.  Continue reading

Music and speech: Why study music, part IV

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