Audio transducers are devices that convert one form of energy into another, specifically sound energy. They play a crucial role in audio systems by transforming electrical signals into audible sound waves. Common examples include microphones, which capture sound and convert it into electrical signals, and speakers, which do the opposite by turning electrical signals back into sound. These transducers operate based on principles of physics, such as electromagnetic induction or piezoelectricity. Their efficiency and design can significantly affect sound quality and performance in various applications, from home audio systems to concert venues.