问题
I was wondering if it's possible to capture playing audio on the audio output hardware with a simple Java program, and then write it to an outputstream for example.
Is it?
回答1:
If your desire is to record the output of all programs to a given audio device using a java app, like audiohijackpro, the short answer is no, this is not possible without native code. It is, in fact, quite difficult to do in any language. As far as I know, no platform makes this easy.
On some environments, there is a workaround, eg, http://cycling74.com/soundflower-landing-page/, but it requires that your end user cooperate.
来源：https://stackoverflow.com/questions/11168465/is-it-possible-to-capture-the-playing-audio-with-java