AudioBufferSourceNode.buffer
AudioBufferSourceNode 接口的 buffer 属性提供了重复播放音频的能力，该音频使用 AudioBuffer 作为声音文件的来源。
如果 buffer 属性的值为 null，节点会自动生成一个单声道的无声文件（所有采样均为 0）。
值
一个 AudioBuffer，包含了节点将要播放的声音数据。
示例
js
const myArrayBuffer = audioCtx.createBuffer(2, frameCount, audioCtx.sampleRate);
button.onclick = function() {
// Fill the buffer with white noise;
//just random values between -1.0 and 1.0
for (let channel = 0; channel < channels; channel++) {
// This gives us the actual ArrayBuffer that contains the data
const nowBuffering = myArrayBuffer.getChannelData(channel);
for (let i = 0; i < frameCount; i++) {
// Math.random() is in [0; 1.0]
// audio needs to be in [-1.0; 1.0]
nowBuffering[i] = Math.random() * 2 - 1;
}
}
// Get an AudioBufferSourceNode.
// This is the AudioNode to use when we want to play an AudioBuffer
const source = audioCtx.createBufferSource();
// set the buffer in the AudioBufferSourceNode
source.buffer = myArrayBuffer;
规范
| 规范 |
|---|
| Web Audio API # dom-audiobuffersourcenode-buffer |