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
5
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 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 any 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 commercial 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
选择依据为文章第2段最后一句话。
转载请注明原文地址:https://tihaiku.com/zcyy/3629266.html
相关试题推荐
Everyyeartelevisionstationsreceivehundredsofcomplaintsabouttheloud
Everyyeartelevisionstationsreceivehundredsofcomplaintsabouttheloud
Everyyeartelevisionstationsreceivehundredsofcomplaintsabouttheloud
Ninety-sixpercentofAmericanhomeshaveatleastonetelevisionsetwhich
Ninety-sixpercentofAmericanhomeshaveatleastonetelevisionsetwhich
Everyyeartelevisionstationsreceivehundredsofcomplaintsabouttheloud
Everyyeartelevisionstationsreceivehundredsofcomplaintsabouttheloud
Everyyeartelevisionstationsreceivehundredsofcomplaintsabouttheloud
Thechangingimageofthefamilyontelevision__________________________(揭示了社会中
InKorea,surgeonsestimatethatatleastonein10adultshavereceivedsom
随机试题
WhichofthefollowingsentencesisINCORRECT?A、Hedarenottellherthetruth.
Ifyou’vebeenoncampusforverylong,I’mcertainthatyou’vealreadyhear
Don’tFeartheMaleBabysitter
【B1】[br]【B3】[originaltext]Asummaryofthephysicalandchemicalnatureofli
甲雇佣乙杀害胡某,并且带乙辨认了胡某。乙在某夜将王某误当做胡某而杀害。甲因此拒付
与人的语言、呼吸和心脏的搏动关系密切的是( )。A.卫气 B.元气 C.中
乳腺癌最早的临床表现是A、腋窝淋巴结肿大 B、无痛单发的小肿块,质硬,表面不光
2015年,我国规模以上电子信息产业企业个数6.08万家,其中电子信息制造企业1
房地产经纪专业人员包括从事房地产经纪活动的房地产经纪人和高级房地产经纪人以及()
下列选项中,体现镇规划原则中“因地制宜原则”的是()。A.小城镇地区差异大,
最新回复
(
0
)