Certain processes are far easier to analyze in the frequency domain than in time

Evidence

Fourier further theorized that if he combined enough sine waves together he could exactly model any waveform in existence. This allowed him to develop the Fourier transform pair—two equations that provide a means of transforming the time domain into the frequency domain and back. — David Howard, Jamie Angus, coustics and Psychoacoustics, 440 (#corroborates, via linked claim)

Categorization

  • XREF: connects to: Frequency-domain thinking makes filtering easier than time-domain; Filtering operates as multiplication in the frequency domain, a key spectral analysis technique; The Fourier transform pair converts signals between time and frequency domains — David Howard, Jamie Angus, coustics and Psychoacoustics, 440 (+1 more)

Broader Connections