把強弱高低調到合適的程度
這一家最貼近旋鈕的畫面。要調的東西正在進行，你只是把它的量調到合適的位置。調的對象可以是聽得見的聲音，也可以是看不見的過程。共同點是：調完之後它還在跑。
verb · C1
To change the sound of your voice on purpose — how high or low it is, how loud it is, and what feeling it carries.
調整（嗓音）
核心畫面
One way to hold modulate: a hand resting on a dial, not on a switch. The thing is already running — a voice, a treatment, a piece of music, a radio wave — and the hand keeps turning the dial to set how much: a little higher, a little softer, a little slower. Nothing is switched off and nothing is swapped for something else. The level is being shaped while it runs, and the shaping follows a measure rather than a , which is why a modulated voice or a modulated signal sounds controlled rather than random.
可以想成手放在旋鈕上，而不是放在開關上。東西本來就在運作：一個聲音、一個療程、一段音樂、一道無線電波。你不是把它關掉…更多收起
可以想成手放在旋鈕上，而不是放在開關上。東西本來就在運作：一個聲音、一個療程、一段音樂、一道無線電波。你不是把它關掉，也不是換成別的。你是一邊讓它繼續，一邊把它的高低、強弱、快慢調到合適的程度。而且這個調整是有分寸的，照著某個尺度走，不是隨便亂轉。所以 a well-modulated voice 聽起來是穩的，a modulated signal 也是被調出形狀的，不是亂跳的。From the word’s history
The evidence packet's Wiktionary entry traces modulate to Latin modulor (to measure, regulate, modulate) plus -ate, from modulus (measure). The literal idea is to set something by a measure, which sits directly under the modern uses: the word is about adjusting to the right amount, not about replacing or switching off.
供給的 Wiktionary 條目說 modulate 來自拉丁文 modulor（量測、調節）加上 -ate，而 modulor 又來自 modulus（尺度、量度）。字面上就是「照著一個尺度去調」。這正好說明為什麼今天的 modulate 講的是把東西調到合適的程度，而不是換掉或關掉。同一條目也提醒 module、modulus 是同一家的字。
Wiktionary entry supplied in the evidence packet (source_ref kaikki:3f6f69a190036ae4:902451458:21930): From Latin modulor (to measure, regulate, modulate) + -ate, from modulus (measure). Compare module, modulus.
Two branches
照規則改變調性或波形（專業用法）
一樣是「照尺度調整」，只是調的對象變成整段音樂的調性或一道波的形狀，而且規則寫得很死，所以被當成專業術語。兩個用法都不是把東西關掉或換掉，而是讓它一邊繼續、一邊被調出新的形狀。
verb · C2
In music, to move from one key to another inside a piece, usually by passing through chords that belong to both keys so that the change sounds smooth.
轉調