A speaker is an electroacoustic transducer that converts an electrical audio signal into a corresponding sound. It is a device used to generate sound and is one of the most common output devices. The speaker driver can be viewed as a linear motor attached to a diaphragm which couples that motors movement to motion of air, that is, sound. The primary objective of speakers is to offer audio output for the listener. The electromagnetic waves are converted into sound waves through the speaker as they are transducers. Usually, speakers come in pairs that led to producing stereo sound. It means, on two separate channels, the left and right speakers produce audio. Music sounds much more natural when you use two speakers, as in this condition, our ears hear sounds from the left and right at one time, which makes sounds much more natural.
Computer speakers, or multimedia speakers, are speakers sold for use with computers, although usually capable of other audio uses, e.g. for an MP3 player. Most computers have speakers of low power and quality built-in; when external speakers are connected, they disable the built-in speakers. Computer speakers range widely in quality and in price. Some computer speakers have equalization features such as bass and treble controls. Bluetooth speakers can be connected with a computer by using an Aux jack and compatible adaptor prove instrumental. More sophisticated computer speakers can have a subwoofer unit to enhance bass output. The larger subwoofer enclosure usually contains the amplifiers for the subwoofer and the left and right speakers.
