首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
Every year television stations receive hundreds of complaints about the loudness of advertisements. However, federal rules forbi
Every year television stations receive hundreds of complaints about the loudness of advertisements. However, federal rules forbi
admin
2015-01-15
24
问题
Every year television stations receive hundreds of complaints about the loudness of advertisements. However, federal rules forbid the practice of making ads louder than the programming. In addition, television stations always operate at the highest sound level allowed for reasons of efficiency. According to one NBC executive, no difference exists in the peak sound level of ads programming. Given this information, why do commercials sound so loud?
The sensation of sound involves a variety of factors in addition to its speak level. Advertisers are skillful at creating the impression of loudness through their expert use of such factors. One major contributor to the perceived loudness of commercials is that much less variation in sound level occurs during a commercial. In regular programming the intensity of sound varies over a large range. However, sound levels in commercials tend to stay at or near peak levels.
Other "tricks of the trade" are also used. Because low-frequency sounds can mask higher frequency sounds, advertisers filter out any noises that may drown out the primary message. In addition, the human voice has more auditory(听觉的)impact in the middle frequency ranges. Advertisers electronically vary voice sounds so that they stay within such a frequency band. Another approach is to write the script so that lots of consonants(辅音)are used, because people are more aware of consonants than vowel(元音)sounds. Finally, advertisers try to begin commercials with sounds that are highly different from those of the programming within which the commercial is buried. Because people become adapted to the type of sounds coming from programming, a dramatic change in sound quality draws viewer attention. For example, notice how many commercials begin with a cheerful song of some type.
The attention-getting property of commercial can be seen by observing one-to-two-year-old children who happen to be playing around a television set. They may totally ignore the programming. However, when a commercial comes on, their attention is immediately drawn to it because of its dramatic sound quality.
Why do advertisers electronically vary voice sounds so that they stay within such a middle frequency band?
选项
A、Because federal rules forbid the practice of making ads louder than the programming.
B、Because one major contributor to the perceived loudness of commercials is that much less variation in sound level occurs during a commercial.
C、Because the human voice has more auditory impact in the middle frequency ranges.
D、Because people become adapted to the type of sounds coming from programming, a dramatic change in sound quality draws viewer attention.
答案
C
解析
事实辨认题。文章第三段第三句讲,中等频率的声音对人听觉的影响较大,所以广告商们就通过电流调整的方法将广告声音固定在中等频率上,因此C正确。
转载请注明原文地址:https://jikaoti.com/ti/gjOjFFFM
0
在职申硕(同等学力)英语
相关试题推荐
In400A.D.Chinesechildrenplayedwithafan-liketoythatspanupwardsandfellbacktoearthas______ceased.
AWrittenEnglishhasbecomemoreBimportantlyinCbusinessEnglish,Dwiththeinventionofthefaxandthecomputer.
Theaimof"Noah’sArk"Projectisto______.WhatcouldbethemajorproblemincloningpandasaccordingtoProfessorKraemer?
Shouldeitherofthesesituationsoccur,wrongcontrolactionsmightbetakenandapotentialaccidentsequenceinitiated.
Inthefirstparagraph,theauthorsuggeststhataqualityeducationcan______Ideally,thegoaloftheprogramofEducationf
Man:Inoticeyoudon’tbuyyourlunchinthecafeteriaanymore.Woman:Whenpriceswentup,Idecidedtobringmyown.Qu
Thefederalcourthasbeenputtingpressureonthestatetoadheretothepopulationcapsinthedecree.
Afewyearsago,intheirsearchforwaystosellmoregoods,advertisingmenhitonanewandcontroversialgimmick.Itisasi
FederalReserveSystem,centralbankingsystemoftheUnitedStates,popularlycalledtheFed.Acentralbankservesasthebank
Inrecentyearstherehasbeenanincreasingnumberoflargeoilspills.Thesespills,someofwhichhaveoccurreddirectlyatt
随机试题
下列组织中,不发生纤维素样坏死的是
A悬垂腹B跨耻征为阴性C常以枕后位入盆D出现持续性枕横位E第二产程停滞中骨盆平面狭窄的临床表现
起重机载物行走时,荷载不得超过额定荷载的70%,重物离地面不得超过()mm,并应拴好拉绳,缓慢行驶。
根据适当过度学习原则,如果一个学生学10遍刚好记住一个英语单词,那么他需要学习________遍学习效果会更佳。
Haveyoueveraskedyourselfwhychildrengotoschool?Youwillprobably【C1】______theygotolearnlanguages,geography,histo
在布置会场时,职务或地位最高者应安排在主席台第一排的()。
圆珠笔(签字笔、中性笔)是我们很熟悉的书写工具。在设计制造时,笔芯内的油墨量与金属笔嘴的寿命存在科学的对应关系,且笔芯上端通常都留有一小孔。关于这些设计的说法不正确的是()。
1929年12月下旬,红四军党的第九次代表大会在福建上杭县古田村召开,会议总结了红军创立以来的经验,通过了著名的古田会议决议。决议的中心思想是
Whatisyourresponsibilitywhenyou,asaschoolprincipal,gettheteacher’sreport?
A、Rightnow.B、Thisweek.C、Nextweek.D、Twoweekslater.C根据对话中女士的回答,可直接判断出交实验报告的时间为一周以后(aweeklater),即下个星期。因此,C项是正确答案。
最新回复
(
0
)