Sound surrounds us. Whether it's sound we choose to hear, like the music we play in our headphones, or sound we'd rather do without, like the noise of the city, we live in a sonic world that we seldom think twice about. Sonic Magic takes us behind the scenes in cutting-edge hospitals and research labs where sound is eliminating cancer tumours without surgery, stopping neurological disorders, and may even reverse the effects of Alzheimer's Disease. It also introduces us to the fields of acoustic ecology and acoustic engineering, showing us how sound shaped our history, and is being shaped to improve communication and enhance our public spaces. The documentary also looks at the other side of sound — the hearing damage caused by noise and aging.