Amplitude

Standardize fft amplitude with different encodings

Standardize fft amplitude with different encodings
  1. What is the amplitude of an FFT?
  2. What is the difference between amplitude and magnitude in FFT?

What is the amplitude of an FFT?

The frequency axis is identical to that of the two-sided power spectrum. The amplitude of the FFT is related to the number of points in the time-domain signal.

What is the difference between amplitude and magnitude in FFT?

Amplitude is the peak value of a sinusoid in the time domain. Magnitude is the absolute value of any value, as opposed to its phase.

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