首页
登录
职称英语
Every year television stations receive hundreds of complaints about, the lo
Every year television stations receive hundreds of complaints about, the lo
游客
2024-10-05
8
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] 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
推断题。根据文章第二段最后一句和第一段第二句可知A为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3788418.html
相关试题推荐
Everyyeartelevisionstationsreceivehundredsofcomplaintsabout,thelo
Everyyeartelevisionstationsreceivehundredsofcomplaintsabout,thelo
Everyyeartelevisionstationsreceivehundredsofcomplaintsabout,thelo
Frankalmostneverreceivedanyeducation,______?A、wouldheB、didheC、didn’t
Comparisonsweredrawnbetweenthedevelopmentoftelevisioninthe20thcen
Comparisonsweredrawnbetweenthedevelopmentoftelevisioninthe20thcen
Comparisonsweredrawnbetweenthedevelopmentoftelevisioninthe20thcen
Comparisonsweredrawnbetweenthedevelopmentoftelevisioninthe20thcen
Comparisonsweredrawnbetweenthedevelopmentoftelevisioninthe20thcen
Comparisonsweredrawnbetweenthedevelopmentoftelevisioninthe20thcen
随机试题
DearSirs,I’mwritingtoconfirmthelossofmycreditcard.Itelephoned
Afriendofmineisadepartmentmanageratalargecompany.Hissecretaryr
Choosethecorrectanswer,A,BorC.AdbourneFilmFestival[br]Lastyear’swi
ItwasnotuntiltheaccidenthappenedA、thatIrealizedmycarelessnessB、whenI
330kV系统操作过电压不超过最高工作电压的()。A.1倍 B.2倍 C.2
在人体实验中,以犯人为受试者,认识正确的是A.犯人是犯了罪的人,用他们作受试者,
以下关于股票票面价值的说法,错误的选项是()。A.股票发行价格高于面值成为溢价发
右边四个图形中,只有一个是由左边的四个图形拼合(只能通过上、下、左、右平移)而成
公民、法人和其他组织对具体行政行为不服需要提出行政复议的,在知道具体行政行为之日
放射性131IA.抑制甲状腺激素生物合成 B.首先抑制甲状腺激素释放,也抑制其
最新回复
(
0
)