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
46
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 and 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 that vowel (元音) sounds. Finally, advertisers try to begin commercials with sounds that are highly different from those of the programming with 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 commercials 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.
Commercials create the sensation of loudness because ______.
选项
A、TV stations always operate at the highest sound levels
B、their sound levels are kept around peak levels
C、their sound levels are kept in the middle frequency ranges
D、unlike regular programs their intensity of sound varies over a wide range
答案
B
解析
细节题。正确答案为B,参看上题分析。A 文章没有提到,C 不符合题意,D 与文章内容正好相反。
转载请注明原文地址:https://kaotiyun.com/show/Z4dK777K
0
大学英语六级
相关试题推荐
Forthispart,youareallowed30minutestowriteashortessayentitledReflectionontheVolunteerWork.Youshouldwriteat
Theauthorclaimsthatlyingisaseriousviceandshouldbe______.Althoughtellingliesissometimesunavoidable,suchbehavi
MillionsofU.S.collegestudentswillhavetoshouldermoreofthecostoftheireducationunderfederalrulesimposedlatelas
Beingoutofworkandhavingtwoyoungchildren,______(夫妻俩发现勉强维持生计是不可能的).
Forthispart,youareallowed30minutestowriteacompositiononthetopicWhatAreCollegeStudentsDoingontheInternet?Y
Scientistshavediscoveredthatplantsthemselvesproducemanypoisonouschemicalsfor(36)______againstinsects.Butinsectsh
WhathappenedtoMr.PottoHeadafteritwasmadeasthetoy?Accordingtothelastparagraph,theroleplayedbyMr.PotatoHe
A、WriteDaisyanoteofapology.B、ReturnDaisy’snotesinafewdays.C、ApologizewhenDaisyislessangry.D、LethertalktoD
A、Becausetheconversationwassointeresting,B、Becausetheytalkedloudlyenough.C、Becausetheystoodsocloselytothewoman
A、ImprovementsinfarmmachineryintheUnitedStates.B、Farmers’lossofindependence.C、Jefferson’sviewsaboutcommercialized
随机试题
行政组织的目标管理借鉴于()
可以鉴别中枢性面瘫与周围性面瘫的检查是
乳牙深龋常用的护髓材料是
对各项资产应按取得时支付的实际成本计量,其后不得自行调整其账面价值,这遵循的是会计要素确认计量原则中的()原则。[2008年真题]
甲公司目前的资本结构(账面价值)为:长期债券680万元,普通股800万元(100万股),留存收益320万元。目前正在编制明年的财务计划,需要融资700万元,有以下资料:(1)本年派发现金股利每股0.5元,预计明年每股收益增长10%,股利支付率(每股股利/每
法律是国家意志的体现。中国古代成文法自战国时代的《法典》开始,到秦汉时代,都是按照儒家精神制订的。中华法系形成的标志是《唐律》的制定和《唐律疏议》的撰写。以判例法为主要法律形式是中华法系的鲜明特点。材料公元395年,罗马帝国一分为二。奴隶
恩格斯指出:“社会上一旦有技术上的需要,则这种需要会比十所大学更能把科学推向前进。”这在认识理论上说明()。
对于同一棵大树,在木匠的眼中是木材,画家看到的是色彩和色调,植物学家看到的是它的形态特征,这是由于()。
Undoubtedly,advancedtechnologyhasbroughtmuchconveniencetous,butmodernpeople,especiallystudents,arenotsupposedto
Astothepunishmentthatchildrenundersevenareassignedtowrongdoing,PiagetsuggestsWhichofthefollowingstatementsab
最新回复
(
0
)