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I have a Kubuntu system which I stream amateur radio sound to via a flash interface. I want to be able to record the sound that the flash player is making at the press of a button. I also need the capability to do (hopefully real-time) spectrum analysis on the sound. I need a program (a firefox add-on would be ideal) that can do this for me.

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Interacting with flash can be difficult. Your best bet is to use some sort of downloader extnsnion on your browser. – Daisetsu Jun 8 '10 at 21:57

You can try audacity. Have a look at this link ->

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I'm using kubuntu so I had to manually install gnome-alsamixer...then, when I looked at the Edit>Sound Card Properties dialog, there was no "Mix" or "Mix Mono" option there. – marcusw Jun 9 '10 at 11:59

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