ABSTRACT
A loudspeaker is a device that converts electrical energy into acoustic energy (electroacoustic transducer), or more generally, a system consisting of one or more such devices. Loudspeakers are present in our daily lives to such an extent that, in most modern societies, one is in almost constant contact with them. From the time the speaker in our clock radio wakes us in the morning until we turn off the television before we go to bed at night, we encounter loudspeakers almost constantly. Even our computers have loudspeakers.
