UC知道英语达人帮帮忙阿 小弟谢过
来源：百度知道 编辑：UC知道 时间：2024/05/28 12:42:13
The use of a logarithmic scale for measurement of the magnitude
of sound is often the cause for confusion because it
does not directly correspond to the way in which people perceive
the relative loudness of different sound levels. People
tend to think that, if two equal sounds are combined, the
result will seem twice as loud. In reality, however, combining
two equal sounds—although it doubles the sound energy—
produces only a 3 dB increase in magnitude, an amount
which is bare perceptible. For one sound to be judged twice
as loud as another, it actually must be 10 dB higher (meaning
that the acoustic energy must increase 10-fold). Because we
perceive the loudness of sounds in relative rather than
absolute terms, the relationship of 10 dB per doubling of
loudness applies to any 10 dB increase—sound level increases
from 40 dB to 50 dB or from 80 dB to 90 dB are both perceived
as representing a doubl
of sound is often the cause for confusion because it
does not directly correspond to the way in which people perceive
the relative loudness of different sound levels. People
tend to think that, if two equal sounds are combined, the
result will seem twice as loud. In reality, however, combining
two equal sounds—although it doubles the sound energy—
produces only a 3 dB increase in magnitude, an amount
which is bare perceptible. For one sound to be judged twice
as loud as another, it actually must be 10 dB higher (meaning
that the acoustic energy must increase 10-fold). Because we
perceive the loudness of sounds in relative rather than
absolute terms, the relationship of 10 dB per doubling of
loudness applies to any 10 dB increase—sound level increases
from 40 dB to 50 dB or from 80 dB to 90 dB are both perceived
as representing a doubl
使用对数为尺度衡量的巨大声音往往是造成混乱的原因 它没有直接对应的方式,是人们认识的相对响度不同的音量. 人们往往认为,如果两个同等的琴音结合,结果便似乎两倍响亮. 但在现实中, 结合两个平等的声音--虽然这双打健全能源生产量只有3分贝增加110.93% 一笔裸露perceptible. 一个声音判断两次大声另一个 它实际上必须10分贝以上(即声能要增加10倍). 因为我们看到的声音听起来相对而非绝对的, 关系10分贝,每增加一倍loudness适用于任何10分贝幅声压级增加40分贝 到50分贝或者80分贝至90分贝,均视为增加了一倍loudness
不会的就不翻译了。。。。。。