real time audio recording

I want to make a code like the demo on matlab: demoai_fft which plots in real time the audio recorded from the mic of my notebook... it is just exactly as the demo does...but i need the code for this demo, or maybe something similar to it... I was triyng to use the audiorecorder command, but it does not do it on real time... anyone? thanks!

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2012-7-6

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