如何通过PHP即时绘制当前话筒中的声音？
需求：打开网页后显示一张图片，即时显示当前话筒中的声音的波形图。
或者不用波形图，PHP中有没有什么函数获取当前的输入声音？求指导
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你想做的是桌面程序？php主要是在服务器上面跑的。。。估计你得失望了。
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呵呵....伤心是因为你找错对象了
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主要是没有相关的音频文件parse函数，不在于哪一端的问题
帮你找了一下，这里有一个前人的成果，但我都没用过，不知道效果
http://www.phpclasses.org/package/2608-PHP-Manipulate-audio-files-in-the-WAV-format.html
最后更新 2005年
http://www.phpclasses.org/package/5365-PHP-Draw-a-graph-of-the-sound-of-a-WAV-file.html
能输出PNG图片 截图：http://www.phpclasses.org/browse/file/26979.html 最后更新 2009年
http://www.phpclasses.org/package/7501-PHP-Create-wav-file-from-multiple-audio-files.html
生成wav，好像没图片 最后更新 2012年
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