From the honking of cars to music blaring out of someone's bedroom window, the world around us is saturated with sound. But what exactly is sound, and how do we hear it? From mimicking an owl's wing for quieter aircraft to creating more effective cochlear implants and the science of opera singing, our panel of experts turn up the volume to 11 to answer your questions on anything audible... Like this podcast? Please help us by supporting the Naked Scientists