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
2024-11-01
4
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 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 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 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] One of the reasons why commercials are able to attract viewer attention is that______
选项
A、the human voices in commercials have more auditory impact
B、people like cheerful songs that change dramatically in sound quality
C、high-frequency sounds are used to mask sounds that drown out the primary message
D、they possess sound qualities that make the viewer feel that something unusual is happening
答案
D
解析
细节题。根据文章第三段倒数第二句可知D为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3826961.html
相关试题推荐
Everyyeartelevisionstationsreceivehundredsofcomplaintsabouttheloud
Mostof______isonAmericantelevisionareprogramsdesignedtoappealtopeopl
Such______thecase,therearenogroundstojustifyyourcomplaints.A、wasB、is
WhywerehundredsofcattleslaughteredinBrazil?[br][originaltext]Author
WhywerehundredsofcattleslaughteredinBrazil?[originaltext]Authorities
OxfordUniversityscientistswillexperimentonhundredsofpeopleinahidt
OxfordUniversityscientistswillexperimentonhundredsofpeopleinahidt
OxfordUniversityscientistswillexperimentonhundredsofpeopleinahidt
OxfordUniversityscientistswillexperimentonhundredsofpeopleinahidt
HershortstayinKentuckyinthemid-nineteenhundredswasveryimportanttoau
随机试题
[originaltext](5)ThedryconditionsinCaliforniaaregoodforpeoplewho
ChineseAmericansIntroduction:Americansusedtoas
患者男性,39岁。入院前3日饮酒后出现剧烈上腹部疼痛、腹胀,不能平卧,伴恶心呕吐
2型糖尿病最基本的病理生理改变是A、极度肥胖 B、长期大量摄糖 C、长期
Youcansleeponthecouchinthelounge
人类感染沙门菌,最常见的是A.伤寒和副伤寒 B.败血症型 C.肠炎型 D.
关于一个人有限责任公司的说法中,()正确。A:一个人有限责任公司只能由一个自然人
以下不是核酸完全水解产物的是A.碱基 B.D-核糖 C.磷酸 D.己糖
()具有测评标准刚性强,测评指标灵活等特点。A.选拔性测评 B..考核性测评
某医师随机抽取性别、病情严重程度等条件相近的红斑狼疮患者28例,随机等分为两个治
最新回复
(
0
)