In his book Zero Decibels, George Foy documents his quest for absolute silence. He visits the quietest place in the world and anechoic chamber in Minnesota. "For a split second, I had this sense of like this bubble that was in my ear," he says.
As decibel levels continue to rise, threatening human existence we turn to two listening experts for help. George Prochnik and George Foy both investigate listening, silence and noise.