分析来自麦克风Javascript的音频输入
[英]Analyze audio input from microphone Javascript
问题描述
I am planning to create a music visualizer on a website. 
我打算在网站上创建一个音乐可视化工具。 There are objects that should change in size, and shape based off of the current music that is playing (a non-classical, multi-line song probably, such as Don't Stop believing). 有些物体应该根据正在播放的当前音乐改变大小和形状（可能是非经典的多行歌曲，例如Do not Stop believe）。 I want to at least be able to know the volume of the music and if possible, any pitches that can be picked up (is FFT possible in Javascript?). 我想至少能够知道音乐的音量，如果可能的话，任何可以拾取的音高（在Javascript中可以进行FFT吗？）。 Are there Sound API's out there that that will let me do this in Javascript, or at least online? 是否有声音API可以让我在Javascript或至少在线执行此操作？
1 个解决方案
解决方案1
9 2013-05-22 02:08:01
Yes, this is possible with the Web Audio API. 是的，这可以通过Web Audio API实现。 Check out the Audio Input demo on http://webaudiodemos.appspot.com/ . 查看http://webaudiodemos.appspot.com/上的音频输入演示。 You don't need to perform the FFT yourself - the web audio api will do it for you. 您不需要自己执行FFT - 网络音频API将为您完成。
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