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Spectrum analyzers are widely used within the electronics industry for analyzing the frequency spectrum of radio frequency, RF and audio signals. Looking at the spectrum of a signal, they are able to reveal elements of the signal, and the performance of the circuit producing them that would not be possible using other means.
Audio spectrum analyzer shows you a detailed picture of what you are hearing in real-time, that is, as it happens. You can easily built very cheap spectrum analyzer circuit using below diagram. However, this is not a real-time and it is just a visualizing model. But this work as real one and you can add this to your audio projects to get a nice appearance and add extra value for it.
You can able to download MikroC source and other files from the below link
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| Schematic Diagram of Analyzer |
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