By analyzing patients' neural activity, researchers reconstructed audio from 'Another Brick in the Wall (Part 1).'
notes, this marks the first time researchers have successfully recreated a song’s instrumentation, rhythm, and vocal melodies from just brain scans.
The impressive feat was over a decade in the making. Between 2008 and 2015, researchers enlisted 29 epilepsy patients already scheduled as part of their treatments to receive sets of nail-like electrode brain implants. These arrays granted the team an opportunity to easily record their brain activity. From there, researchers set about matching areas of neuroactivity to individual audio frequency bands—128 of them, to be exact.
noted on August 15, this meant training 128 separate computer models to decode the data, which when combined, offered a striking recreation of Pink Floyd’s song.“It’s a wonderful result,” study co-author Robert Knight, a neurologist and professor of psychology at UC Berkeley.
“It gives you an ability to decode not only the linguistic content, but some of the prosodic content of speech, some of the affect. I think that’s what we’ve really begun to crack the code on,” added Knight. In addition to their promising advancements in audio recreation, Knight’s team also could finally confirm that a brain’s right side is more equipped for music than its left cortex.researchers landed on “Another Brick in the Wall ” of all songs is less symbolic than practical.
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