The Physics of Sound

Why sound behaves the way it does, and what that means on a show floor

Every skill in live audio rests on a handful of physical facts, and most technicians are never taught them. This book covers what sound actually is, how frequency sets the physical size of a wave, why the decibel is logarithmic and what each kind of decibel is measured against, how sound behaves as it crosses a room and meets a surface, and why two copies of one sound can cancel each other. Written for AV technicians who want to know why, not only which knob.

Inside: What Sound Actually Is - Frequency, Wavelength and Pitch - Level, Loudness and the Decibel - How Hearing Works - How Sound Travels Through a Space - Reverberation and the Room's Own Voice - When Waves Meet: Phase and Interference - Directivity: Why Coverage Is Physics - Feedback: The Loop In Every Room - Where to Go Next - Glossary.