释义 |
sound-reinforcement system [`sau̇nd ´rē·in`fȯrs·mǝnt ´sis·tǝm] ENGINEERING ACOUSTICS An electronic means for augmenting the sound output of a speaker, singer, or musical instrument in cases where it is either too weak to be heard above the general noise or too reverberant; basic elements of such a system are microphones, amplifiers, volume controls, and loudspeakers. Also known as public address system. |