【多选题】【消耗次数：1】
Premiere Pro 有很强的音频处理能力，以下关于音频的一些基础知识，说法正确的是（ ）
①
音量，标志声音的强弱程度，是声音的重要属性之一，衡量音量的单位为分贝
②
音调，在音乐中也称为“音高”，是声音物理特性的一个重要因素，音调的高低取决于声音频率的高低：频率越高，音调越高，反之亦然
③
噪声对人的正常听觉有干扰作用，必须利用各种降噪效果将其除掉
④
动态范围是录音或放音设备在不失真和高于该设备固有噪声的情况下所能承受的最大音量范围
参考答案：
复制
纠错
相关题目
【简答题】
声音的三要素是音调、[填空1]和音色。
随机题目
【单选题】
We have a high regard for Prof. Joseph because he always _____his principles.
①
lives on
②
lives up to
③
lives through
④
lives with
【单选题】
A large part of a person’s memory is _____words and combination of words.
①
by means of
②
in terms of
③
in connection with
④
by way of
【单选题】
_____the center of our planetary system was considered as heresy by the church in the Middle Ages.
①
It is the sun and not the earth
②
That the sun and not the earth is
③
Being the sun and not the earth
④
The sun and not the earth
【单选题】
Nowhere in nature is aluminum found free, owing to its always _____with other elements, most commonly with oxygen.
①
being combined
②
having combined
③
to combine
④
combined
【单选题】
We feel it is high time that the Government _____something to check the inflation.
①
did
②
do
③
should do
④
would do
【单选题】
Physics is the present day equivalent of _____used to be called natural philosophy, form _____most of present day science arose.
①
which, what
②
that, which
③
what, which
④
what, that