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Every year television stations receive hundreds of complaints about the loud
Every year television stations receive hundreds of complaints about the loud
游客
2025-03-19
34
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 viewers’ 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
本题问按照文章内容,来自电视广告中的最大音量怎样。利用查阅式阅读法,我们可以在文章第一段第四句和第二段最后一句中找到相关信息。从这两个句子中我们知道电视广告的音量并未超过其他节目的音量。因此,本题的正确答案应是选择项A“其最大音量没有超过其他节目的音量”。选择项B错,广告节目的音量并未超过普通节目的音量,人们之所以会产生错觉,是因为不同节目的音量技术处理不一样。选择项C应为普通节目音量的特点。选择项D与文章内容不符。因此,B、C和D均是错误的。
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