Is there any documentation of what the data we get back from the fft is?
I am figuring the float value is the amplitude of the frequency depending on the number of values you specify. Hence if I specify 10,000 values I will get the frequency spectrum divided in to 10,000 parts.
What I want to know is; what are the extremes of that spectrum? 20-20kHz.
Is the spectrum divided linearly i.e. 20Hz,22,24,26,28,30,….19998,20000Hz
Logarithmically i.e. 20,40,80,160,320,640,1280,2560,5120,10240,20480
- dani_zee asked 8 years ago
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