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A clap-o-meter, clapometer or applause meter is a measurement instrument that purports to measure and display the volume of clapping or applause made by an audience. It can be used to indicate the popularity of contestants and decide the result of competitions based on audience popularity. Specific implementations may or may not be based on an actual sound level meters. Clap-o-meters were a popular element in talent shows and television game shows in the 1950s and 1960s, most notably ''Opportunity Knocks'',〔BBC: (Press Your Buttons Now! )〕 but have been since been supplanted by other, more sophisticated, methods of measuring audience response. == History == One of the first appearances of a clap-o-meter was in 1956, on the British TV game show ''Opportunity Knocks'', developed and presented by Hughie Green. The clap-o-meter itself was a wooden box labelled "Audience Reaction Indicator". The prop is now part of the collection of the National Media Museum, in Bradford.〔Bradford Telegraph and Argus: (Discover hidden treasures )〕 Clap-o-meters were used in many other TV shows and at live events.〔(''The Beatles Diary: The Beatles years''. Barry Miles, Keith Badman ) pp15-16〕 In 1989, Green unsuccessfully attempted to sue the New Zealand Broadcasting Corporation for copyright infringement over a similar programme. The clap-o-meter was one of the distinctive features of the format by which Green sought to define it as copyrightable. The courts found that a loose format defined by catchphrases and accessories, such as the clap-o-meter, was not copyrightable.〔(GREEN v. BROADCASTING CORPORATION OF NEW ZEALAND ) ((Details of the ruling ))〕 Clap-o-meters continue to be used. They are often regarded as a novelty or item of amusement rather than an accurate method to measure popularity. Even so, they are sometimes used to judge winners in fairly serious competitions such as battle of the bands competitions.〔(Core77 Live 1 Hour Design Challenge at 'A Better World by Design' )〕〔Irish Independent: (World air fiddle championships )〕〔Plymouth Herald: (Clapometer installed at The Hippo )〕 In politics, a politician's popularity is sometimes gauged by the applause they achieve when giving speeches. News organisations sometimes use the concept of a clap-o-meter to gauge popularity of a politician or of components of a politician's overall message.〔Channel 4 News: (Our Clap-O-meter says... )〕 Clap-o-meter software is also available for computers and mobile devices. The software uses the device's microphone or audio input to determine the level of applause.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Clap-o-meter」の詳細全文を読む スポンサード リンク
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