“Computer speakers”的意思、由来-开放百科全书

词条

Computer speakers

释义

See also
References

{{Distinguish|PC speaker}}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 such speakers have an internal amplifier and consequently require a power source, which may be by a mains power supply often via an AC adapter, batteries, or a USB port. The signal input connector is often a 3.5 mm jack plug (usually color-coded lime green per the PC 99 standard); RCA connectors are sometimes used, and a USB port may supply both signal and power (requiring additional circuitry, and only suitable for use with a computer). Battery-powered wireless Bluetooth speakers require no connections at all. Most computers have speakers of low power and quality built in; when external speakers are connected they disable the built-in speakers. Altec Lansing claims to have created the computer speaker market in 1990.^[1]

Computer speakers range widely in quality and in price. Computer speakers sometimes packaged with computer systems are small, plastic, and have mediocre sound quality. 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.^[2]

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.

Some computer displays have rather basic speakers built-in. Laptop computers have built-in integrated speakers, usually small and of restricted sound quality to conserve space.

Instead of using a computer speaker for better sound, a computer can be connected to any external sound system, typically a high-power high-quality setup.

References

1. ^{{cite web |url=http://www.alteclansing.com/gb/history/ |title=Our History |date= |author= Altec Lansing|accessdate= 29 December 2015}}
2. ^{{Cite web|url=https://stereoauthority.com/best-portable-bluetooth-speakers/|title=Best Portable Bluetooth Speakers 2019 Reviews (Buying Guide)|date=2019-01-27|website=Stereo Authority|language=en-US|access-date=2019-01-28}}

{{Basic computer components}}Speaker

4 : American inventions|Computer peripherals|Loudspeakers|Boombox culture

随便看

开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。

See also

References