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
25
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://www.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
Asmostpeoplespendamajorpartoftheiradultlifeatwork,jobsatisfact
Peoplethroughouttheworldareeating______meatperpersonastheydidin1950.
December1D
[originaltext]M:Ihearyouarcmovingtoanewapartmentsoon.W:Yes,butit’
不属于失用症的是A.结构性失用 B.穿衣失用 C.运动性失用 D.意念性失
成人颞下颌关节紊乱病正畸治疗中的方法包括A.TMD患者可用再定位板以增加颌间距,
对于新充气的SF6绝缘变压器电缆箱,要求SF6气体湿度()。(A)≤12
(2017年真题)某单位的图书馆书库采用无管网七氟丙炕气体灭火装置进行防护,
心理咨询师初诊接待时的工作主要是()。单选A.提供释放压力的空间 B.体
用来比较实际进度与计划进度的香蕉曲线法中,组成香蕉曲线的两条线分别是按各项工作的
最新回复
(
0
)