在WP7中提取声谱数据

问题描述

当我意识到 MediaLibrary 的 GetVisualizationData() 在 WP7 上返回一堆零时，我非常不满意.为了从我的 MediaLibrary 的歌曲集中计算和提取声谱数据，我可以应用哪些其他方法?

I was very dissatisfied when I realized that the MediaLibrary's GetVisualizationData() returns a bunch of zeros on WP7. What are the other approaches I could apply in order to compute and extract sound spectrum data from my MediaLibrary's song collection ?

附言它的编写方式表明我正在从事一个 XNA 项目.我很乐意接受甚至与 Silverlight 相关的方法，因为这更像是我正在努力解决的普遍问题

P.S. The way it's written suggests that I'm working on an XNA project. I would be glad to accept even Silverlight-related approaches, as this is more of a general problem I'm struggling with

推荐答案

您必须编写自己的算法.这并不容易，但您要寻找的是节拍检测(此页面有一些链接让你开始).

You'll have to write your own algorithm. It's not exactly easy, but what you're looking for is Beat Detection (this page has some links to get you started).

这是一些 Java 源代码用于来自 Mimim 库的节拍检测.

Here is some Java source-code for beat detection from the Mimim library.

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