javascript - WebAudio 调频调制

Question

我正在尝试用来自慢速振荡器 sine 的脉冲调制 saw 频率。我究竟做错了什么？ jsFiddle 在这里:https://jsfiddle.net/06ua9zLo/

window.AudioContext = window.AudioContext||window.webkitAudioContext;

var context = new AudioContext();

var saw      = context.createOscillator(),
    sine     = context.createOscillator(),
    sineGain = context.createGain();

//set up our oscillator types
saw.type = 'sawtooth';
sine.type = 'sine';

//set the amplitude of the modulation
sineGain.gain.value = 10;

//connect the dots
sine.connect(sineGain);
sineGain.connect(saw.frequency);

saw.connect(context.destination);

sine.start();
saw.start();

Answer 1

您的设置没问题。只需尝试改变调制器的频率并增加一点增益，您就会发现实际上是在调频。例如:

sine.frequency.value = 15;
sineGain.gain.value = 100;

肯定会告诉你它有效。