首页
登录
职称英语
Every year television stations receive hundreds of complaints about the lou
Every year television stations receive hundreds of complaints about the lou
游客
2024-09-29
9
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/3779187.html
相关试题推荐
Alice’sblogcontains______photographsandhundredsofarticlesandshortvide
Themedicaltreatmentyouhavereceivedfromthehospitalwillensureyouaspee
Everyyeartelevisionstationsreceivehundredsofcomplaintsaboutthelou
Everyyeartelevisionstationsreceivehundredsofcomplaintsaboutthelou
Whilepeoplemayrefertotelevisionforup-to-the-minutenews,itisunlikelyt
Surprisingly,nooneknowshowmanychildrenreceiveeducation,inEnglish
Surprisingly,nooneknowshowmanychildrenreceiveeducation,inEnglish
______manytimes,thisradioreceiverisfoundverysensitive.A、BeingtestedB、
Bythetimeyoureceivethisletter,I______forAmerica.A、willleaveB、havele
WhatdidLebaneseprotestorsdemand?[originaltext]Hundredsofthousandsof
随机试题
Weappreciatethegoodqualityofyourproducts,butunfortunatelyyourpricesap
Don’trisk______thejobwhichsomanypeoplewant.A、losingB、toloseC、lostD、yo
筷子是广泛适用于东亚各国的传统餐具。筷子的历史起源于中国古代,最早可以追溯到商代。筷子通常由竹子、塑料、木材或不锈钢制成。第一双筷子可能用于烹饪,拨火而不是作为
Toughnewrulesforpubsandclubs—includingabanondrinkinggameslike
农业是人类社会发展的基础,社会在发展的过程中从农业社会到工业社会,从工业社会到现
患者女,55岁。因急性有机磷农药中毒到急诊科进行抢救,经过洗胃等抢救,现患者病情
2020年下半年,我国稀土及其制品的出口额为多少万元?A.621464
按其与业务量的关系不同,预算编制方法可以分为()。A:增量预算法B:固定预算法
下列哪项不是公共卫生监测的目的A.确定主要的公共卫生问题 B.查明原因,采取干
某设备6年前的原始成本为90000元,目前的账面价值为30000元,现在的市场价
最新回复
(
0
)