diff --git a/files/zh-cn/web/api/audiobuffersourcenode/buffer/index.md b/files/zh-cn/web/api/audiobuffersourcenode/buffer/index.md index 47d179a998fbb7..a9cd23931b5a26 100644 --- a/files/zh-cn/web/api/audiobuffersourcenode/buffer/index.md +++ b/files/zh-cn/web/api/audiobuffersourcenode/buffer/index.md @@ -7,36 +7,30 @@ tags: - Web Audio API translation_of: Web/API/AudioBufferSourceNode/buffer --- -
{{ APIRef("Web Audio API") }}
+{{ APIRef("Web Audio API") }} -{{ domxref("AudioBufferSourceNode") }} 接口的 buffer
属性提供了重复播放音频的能力,该音频使用 {{domxref("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)。
AudioBufferSourceNode.buffer = soundBuffer; -+一个 {{domxref("AudioBuffer")}},包含了节点将要播放的声音数据。 -
{{domxref("AudioBuffer")}},包含了节点将要播放的声音数据。
+> **备注:** 完整的示例请查看[演示示例](https://mdn.github.io/webaudio-examples/audio-buffer/),或[查看源代码](https://github.com/mdn/webaudio-examples/blob/master/audio-buffer/index.html)。 -完整的示例请查看 this code running live,或 view the source。
-var myArrayBuffer = audioCtx.createBuffer(2, frameCount, audioCtx.sampleRate); +```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 (var channel = 0; channel < channels; channel++) { + for (let channel = 0; channel < channels; channel++) { // This gives us the actual ArrayBuffer that contains the data - var nowBuffering = myArrayBuffer.getChannelData(channel); - for (var i = 0; i < frameCount; i++) { + 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; @@ -45,22 +39,20 @@ button.onclick = function() { // Get an AudioBufferSourceNode. // This is the AudioNode to use when we want to play an AudioBuffer - var source = audioCtx.createBufferSource(); + const source = audioCtx.createBufferSource(); // set the buffer in the AudioBufferSourceNode - source.buffer = myArrayBuffer;+ source.buffer = myArrayBuffer; +``` -
{{Compat("api.AudioBufferSourceNode.buffer")}}
-{{page("/en-US/docs/Web/API/AudioBufferSourceNode","See_also")}}
+- [使用 Web Audio API](/zh-CN/docs/Web/API/Web_Audio_API/Using_Web_Audio_API) +- [Web Audio API](/zh-CN/docs/Web/API/Web_Audio_API)