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
外语
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
2010-02-26
56
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 any 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.
According to the passage, the maximum intensity of sound coming from commercials______.
选项
A、does not exceed that of programs
B、is greater than that of programs
C、varies over a large range than that of programs
D、is less than that of programs
答案
A
解析
选择依据为第1段第4句:“…no difference exists in the peak sound level of ads and programming”和第2段最后一句“…sound levels in commercials tend to stay at or near peak levels.”
转载请注明原文地址:https://kaotiyun.com/show/SqdK777K
0
大学英语六级
相关试题推荐
Manyteachersbelievethattheresponsibilityforlearninglieswiththestudents,Ifalongreading(47)______isgiven,instru
A、Adentist.B、Acook,C、Adietician.D、Atwirler.AM:Openwide.Nowshowmewhereithurts.W:Hereonthetop,especiallywhe
A、Theyworkatthezoo.B、Theyareprobablystudentsmajoringinart.C、Theyenjoywatchingelephants.D、Theyaregoingtofeed
A、ThecassetteplayerB、Thesalesslip.C、Worthoftapes.D、Warranty’sexpired.DWhataretheytalkingabout?
Whenwasthislecturegiven?Whencanastudentseetileprofessorinheroffice?
Bysaying"ButinAmerica,timeismorethanthat"(Para.1),theauthorthinksthattheAmerican______.WhydoAmericanstryto
Theexpression"rippleeffect"(Para.1)mostprobablymeans"__________".Thepurposeofthefederalneedsanalysisistodete
A、Becausegoodmenarenotassmartasthepolice.B、Becausegoodpeoplehavenosenseofguilt.C、Becausegoodpeoplehavehard
A、Itlacksthenecessarybackgroundinformation.B、Themanshouldfindthepropersubjecttoresearchfirstly.C、Itwillbefini
A、Waysofgettingextracredits.B、AllrequirementsofanM.A.degreeC、Thecredithoursrequiredforadegree.D、Takingmoreo
随机试题
领导者拥有的影响追随者的能力或力量都来自于由组织赋予领导者的职位和权力。()
下列哪项不是胃阴亏虚之胃痛的主证
建设单位违反《城市地下管线工程档案管理办法》规定,未移交地下管线工程档案的,建设主管部门可以给予的行政处罚是()。
为了便于记账,采用复式记账法时,对所设立的账户,都要固定记账方向。()
根据企业国有资产法律制度的规定,下列各项中,代表国家对国家出资企业履行出资人职责的有()。
讲授法就是注入式教学()。
(2006年试题,一)设矩阵单位矩阵,矩阵B满足BA=B+2E则|B|=_________.
(2012年上半年)某项目经理要求采购管理员从外面供货商那里采购硬件设备时,需要准备一个(60)以描述采购设备的相关质量技术指标、验收标准和付款方式与期待等内容。
在E-R图中,用来表示实体联系的图形是
A、ThehistoryofEnglishdictionaries.B、Thefeaturesofdifferentdictionaries.C、HowtocompileEnglishdictionaries.D、Thedi
最新回复
(
0
)