I'm trying to build audio reactive leds as a little project. I'm using an api to interact with leds via computer. What I'm trying to accomplish is to be able to divide the audio stream into frequency ranges. For example, if I divide by 100Hz, a 22100 Hz solo channel should provide 221 groups. Then I want to assign each group to a led or leds and do effects with the normalized mean value of the groups.How can I accomplish this? I've been reading about FFT and tried some sample codes but so far I've failed. I can't seem to get my head around this. Below is the closest project that I've found online. I've tweaked around with it and I'm able to control my leds but I just can't, for example, isolate the first 100 Hz.
Dividing Sound Into Equal Frequency Ranges with pyaudio
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