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
2013-05-14
115
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 peak level. Advertisers are skilful at creating the impression of loudness through their expert use of such factors. One major contributor to the perceived loudness 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 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 are used, because people are more ware of consonants than vowel 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 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.
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
转载请注明原文地址:https://kaotiyun.com/show/9XXd777K
本试题收录于:
公共英语五级笔试题库公共英语(PETS)分类
0
公共英语五级笔试
公共英语(PETS)
相关试题推荐
WhenOurWordsCollide"Wannabuyabody?"ThatwastheopeninglineofmorethanafewphonecallsIgotfromfreelance(自由职
LifeConnectedWithComputerAftertoolongontheNet,evenaphonecallcanbeashock.Myboyfriend’sLiverpudlianaccen
TheSandwichGenerationTodaypeopleoftenlookforwardtotheirmiddleageasatimewhentheywillbeabletotakethings
HowHuman’sPersonalitiesandBehaviorsAreFormed1Peoplehavewonderedforalongtimehowtheirpersonalitiesandbehav
ThenumberoftheUnitedStatescitizenswhoareeligibletovotecontinuestoincrease.
Thatstudentisdiscourteous;hegrumblesnomatterhowonetriestopleasehim.
ThenumberoftheUnitedStatescitizenswhoareeligibletovotecontinuestoincrease.
IncomeTaxFormanyyoungAmericans,graduatingfromcollegemeansfindingajob,movingoutofthedormroomandbeginning
"Howareyoukeeping?""Look(31)yourself"."GoodHealth"."Here’syourhealth"."Health,wealthandhappiness"."Ifyou’rehea
Whatinformationcanbealreadyseenonfoodpackaging?
随机试题
胃肠减压管拔出指征是()
石灰稳定土施工技术要求拌和应均匀,每层摊铺虚厚不宜超过()mm。
《环境管理体系要求及使用指南》GB/T24001--2004体系标准的总体结构是由()四部分组成。
下列各项中,()反映企业的施工生产与生产消费之间的数量关系,是施工企业生产力水平的体现。
一个单位在几家金融机构开户的,只能在一家金融机构开立()。
2013年3月15日,甲(住A市C区)、乙(住A市C区)二人在A市D区某酒吧因琐事斗殴,二人均受伤。事发后,当地派出所警察丙根据《治安管理处罚法》对甲处以罚款400元,对乙处以罚款200元。甲不服,向A市D区公安分局申请行政复议。复议机关对甲、乙二人分别作
Windows操作系统的出现打破了某家计算机制造商对图形界面的控制,并出现了数种互不兼容的操作系统大战。因此,这家计算机制造商重新协调战略、组织结构,走出单一产品的经营模式,销售应用范围更广的产品,令公司摆脱倒闭厄运。根据以上信息可以判断,该公司进行的战略
(2016年真题)班主任苏老师发现,承担本班数学教学任务的林老师经常让学生罚站。面对这种情况,苏老师应该()。
学习为了获得教师、家长或同伴的赞许和接纳,这是一种(),而把学习成就看作是赢得地位和自尊的根源,这是一种()。(2015·贵州)
Awell-dressedman,______(他的外表和谈吐都像个美国人),gotinthecar.
最新回复
(
0
)