Isolate a single bin of an FFT
This example shows how to isolate a single FFT bin, as opposed to displaying the entire spectrum. The example uses fft~ instead of fftin~, but the principle is the same.
This example shows how to isolate a single FFT bin, as opposed to displaying the entire spectrum. The example uses fft~ instead of fftin~, but the principle is the same.
The Fast Fourier Transform (FFT) is a mathematical procedure for converting a time-domain signal (such as a sound wave) into an equivalent frequency-domain representation (the sound’s spectrum). The inverse transform (IFFT) reverses that process. The Max object pfft~ allows you to encapsulate an FFT and IFFT (with the objects fftin~ and fftout~ respectively) and program some sort of frequency-domain processing (alteration of the spectrum) between the two.