modulation
n. 调制; 调幅度; 移调
If you modulate your voice or a sound, you change or vary its loudness, pitch, or tone in order to create a particular effect.
He carefully modulated his voice.
他小心地压低了声音。
To modulate an activity or process means to alter it so that it is more suitable for a particular situation.
These chemicals modulate the effect of potassium.
这些化学物质可以调节钾的功效。
1. a musical passage moving from one key to another
2. (electronics) the transmission of a signal by using it to vary a carrier wave; changing the carrier's amplitude or frequency or phase
3. rise and fall of the voice pitch
4. a manner of speaking in which the loudness or pitch or tone of the voice is modified
5. the act of modifying or adjusting according to due measure and proportion (as with regard to artistic effect)
The famine turned the normal modulation of climate into disaster.
正常的气候变化因饥荒而成了灾难。
The soft modulation of her voice soothed the infant.
她柔和的声调使婴儿安静了.
Frequency modulation does not allow static to creep in.
频率调制不允许静电干扰混入.
Our fifth concern is with modulation noise.
我们要讨论的第五个问题是调制噪声.
This system of modifying the carrier waves is called " Amplitude Modulation, " or " AM ".
这个改变载波的系统称为 “ 振幅调制 ” 或缩写为 “ AM ”.