首页
登录
职称英语
Every year television stations receive hundreds of complaints about the loud
Every year television stations receive hundreds of complaints about the loud
游客
2024-06-11
1
管理
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. [br] 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://tihaiku.com/zcyy/3628884.html
相关试题推荐
Theaboveexperimentshowsthatnotalltheinformationwhichisreceivedca
Comparisonsweredrawnbetweenthedevelopmentoftelevisioninthe20thcen
TelevisionhastransformedpoliticsintheUnitedStatesbychangingtheway
【B1】[br]【B3】A、usersB、takersC、carriersD、receiversC词汇重复。下文提到该词。虽然文章也提到A,但这里指
Whatistheauthor’sattitudetowardstelevision?[br]Whichofthefollowingid
Whatistheauthor’sattitudetowardstelevision?[br]Howistelevisionsaidto
CableTelevisionInthe1940s,there
AccordingtoVintCerf,televisionwouldsoonapproachits"iPodmoment"whenvi
AccordingtoVintCerf,televisionwouldsoonapproachits"iPodmoment"whenvi
AccordingtoVintCerf,televisionwouldsoonapproachits"iPodmoment"whenvi
随机试题
黄果树瀑布是我国第一大瀑布,也是亚洲最大的瀑布。它位于贵州省安顺市,是贵州著名的旅游景点之一。瀑布高度为77.8米,宽度为101米,其中主瀑高67米,顶
Shelostcontrolofherselfandburstintocrying______(看到这幅悲惨的景象).atthesigh
CyberCafe(网吧)computercentersarefoundinmanycitiesaroundtheworld.No
某工程双代号时标网络计划如下图所示,由此可得正确的结论有()。 A.工作A为关
在一般情况下,收缩压的高低主要反映()。A.心率 B.循环血量 C.外周
一级反应肯定是单分子反应。()
目前国际公认的评价医疗卫生综合效果和居民健康水平的重要指标包括A.孕产妇死亡率
提取蛋白质和酶宜用A.水煮提盐析B.水煮提醇沉C.乙酸乙酯提取D.乙醚提取E.水
属于糖皮质激素类药的药物是A.氨茶碱 B.克伦特罗 C.麻黄碱 D.布地奈
某工程主要工作是混凝土浇筑,中标的综合单价是400元/m3,计划工程量是800
最新回复
(
0
)